Kemon Hall - Pro Football Rumors

Minor NFL Transactions: 8/17/23

August 17th, 2023 at 7:07pm CST by Ben Levine

Today’s minor moves:

Atlanta Falcons

Signed: OT Trevor Reid

Chicago Bears

Signed: LB Davion Taylor
Waived/injured: LB Buddy Johnson
Released from IR: TE Jake Tonges

Denver Broncos

Reverted to IR: DE Forrest Merrill

Indianapolis Colts

Signed: WR Tyler Adams

Las Vegas Raiders

Released from IR: WR D.J. Turner

Los Angeles Chargers

Activated from PUP: DT Austin Johnson
Reverted to IR: CB Kemon Hall

Minnesota Vikings

Signed: RB Aaron Dykes
Waived: K Jack Podlesny

New York Jets

Signed: CB Nehemiah Shelton
Released: RB Damarea Crockett
Released from IR: OT Yodny Cajuste
Reverted to IR: CB Javelin Guidry

Pittsburgh Steelers

Released from IR: WR Ja’Marcus Bradley

San Francisco 49ers

Released from IR: CB Anthony Averett

Seattle Seahawks

Signed: CB Montrae Braswell, NT Matthew Gotel, WR Justin Marshall
Waived: TE Noah Gindorff, RB Wayne Taulapapa
Waived/injured: WR Ra’Shaun Henry

Players placed on injured reserve during training camp or the preseason can’t be activated during the 2023 campaign. However, if they’re released from IR (often via an injury settlement), they’re free to sign and play elsewhere. For instance, Anthony Averett will surely be a player who can catch on with a new squad. The cornerback has seen time in 51 games (27 starts), collecting 114 tackles, three interceptions, and 23 passes defended. He had a career season in 2021 with the Ravens, starting all 14 of his appearances while chipping in 54 tackles, 11 passes defended, and three picks. He spent the 2022 season with the Raiders, starting six of his seven appearances while dealing with a pair of IR stints. He caught on with the 49ers earlier this month.

Among today’s signings, Davion Taylor is an intriguing addition to the Bears linebackers room. The former third-round pick spent the first two seasons of his career with the Eagles, including a 2021 campaign where he started six of his nine appearances while compiling 41 tackles and a pair of forced fumbles. A knee injury ended that breakout campaign early, and he spent most of the 2022 season on the Eagles’ practice squad.

Minor NFL Transactions: 8/16/23

August 16th, 2023 at 8:11pm CST by Ely Allen

Here are today’s minor transactions from around the NFL:

Carolina Panthers

Waived from IR with injury settlement: DE Jalen Redmond

Denver Broncos

Signed: RB Dwayne Washington
Reverted to IR: K Elliott Fry
Waived: DT Forrest Merrill

Detroit Lions

Waived from IR with injury settlement: WR Trey Quinn

Green Bay Packers

Waived from IR with injury settlement: WR Jeff Cotton

Kansas City Chiefs

Reverted to IR: CB Anthony Witherstone

Los Angeles Chargers

Signed: CB Matt Hankins
Waived/injured: CB Kemon Hall

New York Giants

Reverted to IR: T Devery Hamilton
Waived/injured: LB Troy Brown

New York Jets

Waived/injured: CB Javelin Guidry
Waived from IR with injury settlement: QB Chris Streveler

San Francisco 49ers

Released from IR with injury settlement: DE Darryl Johnson

Tennessee Titans

Signed: DT Michael Dwumfour
Waived: OLB Zach McCloud

Fry goes unclaimed on the waiver wire after being waived with an injury designation yesterday by the Broncos. This could mean that Brett Maher won’t be able to run away with the job to replace longtime kicker Brandon McManus this year. With Fry remaining on the roster, Maher will need to stay sharp in order to stay the only active kicker on the team’s depth chart.

Guidry is expected to undergo surgery after injuring his knee in a joint practice with the Buccaneers today, according to Mike Garafolo of NFL Network. The Jets will hope he lasts through waivers as he has impressed so far in camp. If he does, New York will likely revert him to injured reserve in order to keep him on the roster.

Minor NFL Transactions: 3/22/23

March 22nd, 2023 at 6:20pm CST by Ely Allen

Here are today’s minor moves from around the NFL:

Jacksonville Jaguars

Signed: DE Michael Dogbe, DT Henry Mondeaux

Los Angeles Chargers

Re-signed: CB Kemon Hall, K Cameron Dicker

Los Angeles Rams

Re-signed: DT Michael Hoecht

Minnesota Vikings

Signed: LB Troy Reeder
Re-signed: FB C.J. Ham

San Francisco 49ers

Signed: DE Austin Bryant

Minor NFL Transactions: 12/26/22

December 26th, 2022 at 6:08pm CST by Sam Robinson

Here are Monday’s minor moves:

Arizona Cardinals

Placed on IR: LS Aaron Brewer
Claimed (from Steelers): CB Josh Jackson

Indianapolis Colts

Promoted: LB Segun Olubi

Los Angeles Chargers

Signed from practice squad: S Raheem Layne
Placed on IR: CB Kemon Hall
Promoted: RB Larry Rountree

Seattle Seahawks

Placed on IR: S Joey Blount
Signed from practice squad: RB Godwin Igwebuike

Brewer, who has been the Cardinals’ long snapper for the past seven seasons, suffered a pectoral injury. Brewer’s contract expires after this season. The Cardinals initially signed Jackson this offseason but waived him weeks later. The Steelers carried Jackson on their practice squad for much of this season. The former second-round pick played in four games with the team.

Minor NFL Transactions: 12/10/22

December 10th, 2022 at 7:41pm CST by Adam La Rose

Here are the minor moves around the league in advance of the Week 14 slate of games:

Atlanta Falcons

Signed off Titans’ practice squad: QB Logan Woodside

Baltimore Ravens

Elevated: QB Anthony Brown, S Ar’Darius Washington

Buffalo Bills

Elevated: WR John Brown

Carolina Panthers

Activated from NFI list: DL Henry Anderson
Waived: CB Tae Hayes

Cleveland Browns

Elevated: S Mike Brown, LB Tae Davis

Dallas Cowboys

Elevated: T Aviante Collins
Placed on IR: CB Anthony Brown (story)

Denver Broncos

Signed to active roster: T Quinn Bailey
Elevated: G Netane Muti, LB Harvey Langi

Detroit Lions

Signed to active roster: OL Ross Pierschbacher
Elevated: LB Jarrad Davis, CB Jarren Williams
Placed on IR: CB Chase Lucas

Houston Texans

Elevated: WR Jalen Camp, QB Jeff Driskel

Jacksonville Jaguars

Activated from IR: OLB K’Lavon Chaisson
Elevated: LB Ty Summers

Kansas City Chiefs

Elevated: WR Ihmir Smith-Marsette

Las Vegas Raiders

Signed to active roster: C Hroniss Grasu

Los Angeles Chargers

Signed to active roster: CB Kemon Hall
Elevated: DL Christopher Hinton, S Raheem Layne
Placed on IR: TE Richard Rodgers

Miami Dolphins

Elevated: WR Freddie Swain

Minnesota Vikings

Elevated: S Myles Dorn, CB Tay Gowan

New York Giants

Elevated: DT Ryder Anderson, CB Zyon Gilbert

New York Jets

Elevated: LB Marcell Harris

Philadelphia Eagles

Elevated: LB Christian Elliss

San Francisco 49ers

Elevated: RB Tevin Coleman, S Dontae Johnson

Seattle Seahawks

Activated from PUP list: LB Jon Rhattigan
Elevated: RB Godwin Igwebuike, WR Laquon Treadwell

Tampa Bay Buccaneers

Activated from IR: LB K.J. Britt
Elevated: WR Deven Thompkins, S Nolan Turner

Tennessee Titans

Signed to active roster: WR Chris Conley, LB Jack Gibbens, CB Greg Mabin
Activated from IR: WR Racey McMath, CB Josh Thompson
Elevated: RB Julius Chestnut, CB Davontae Harris
Placed on IR: LB David Long
Released: DL Larrell Murchison, OL Jordan Roos

Minor NFL Transactions: 11/5/22

November 5th, 2022 at 8:51pm CST by Ben Levine

We’ll keep track of today’s minor moves here:

Arizona Cardinals

Promoted: P Nolan Cooney, DL Manny Jones

Carolina Panthers

Promoted: S Marquise Blair, RB Spencer Brown

Cincinnati Bengals

Signed to active roster: DT Domenique Davis
Promoted: CB Allan George, WR Trenton Irwin
Placed on IR: CB Chidobe Awuzie (story)

Detroit Lions

Signed to active roster: WR Stanley Berryhill
Promoted: WR Brandon Zylstra, TE Shane Zylstra

Indianapolis Colts

Promoted: RB Phillip Lindsay, RB Jordan Wilkins

Los Angeles Chargers

Promoted: K Cameron Dicker, WR Keelan Doss, CB Kemon Hall
Placed on IR: TE Donald Parham Jr.

Los Angeles Rams

Signed to active roster: OL Chandler Brewer
Promoted: TE Jared Pinkney, RB Ronnie Rivers
Activated from IR: LB Travin Howard

Miami Dolphins

Promoted: OT Kion Smith

Minnesota Vikings

Promoted: WR Dan Chisena, TE Nick Muse

New York Jets

Signed to active roster: TE Kenny Yeboah
Promoted: T Conor McDermott

Seattle Seahawks

Promoted: LB Josh Onujiogu

Tennessee Titans

Promoted: QB Logan Woodside, DT Larrell Murchison

Washington Commanders

Promoted: FB Alex Armah, LB Nathan Gerry

Minor NFL Transactions: 9/10/22

September 10th, 2022 at 7:20pm CST by Adam La Rose

Today’s minor moves around the league, as teams prepare for the first Sunday slate of regular season games:

Arizona Cardinals

Signed to 53-man roster: WR Andre Baccellia
Signed to 53-man roster (from Giants’ practice squad): OL Max Garcia
Promoted from practice squad: LB Devon Kennard, CB Jace Whittaker
Placed on IR: OL Cody Ford
Released: CB Javelin Guidry

Atlanta Falcons

Promoted from practice squad: TE Anthony Firkser
Released: DL Abdullah Anderson

Baltimore Ravens

Promoted from practice squad: OLB Steven Means

Carolina Panthers

Promoted from practice squad: LB Arron Mosby

Chicago Bears

Promoted from practice squad: DL Mike Pennel, OL Dieter Eiselen

Cleveland Browns

Promoted from practice squad: LB Jordan Kunaszyk, DE Isaac Rochell

Dallas Cowboys

Promoted from practice squad: QB Cooper Rush, K Brett Maher

Detroit Lions

Promoted from practice squad: RB Justin Jackson, LB Anthony Pittman

Green Bay Packers

Promoted from practice squad: S Micah Abernathy, WR Juwann Winfree

Houston Texans

Signed to 53-man roster: DL Demone Harris, LB Kevin Pierre-Louis
Promoted from practice squad: WR Chris Conley, QB Jeff Driskel
Placed on IR: DE Mario Addison

Indianapolis Colts

Promoted from practice squad: CB Tony Brown

Kansas City Chiefs

Promoted from practice squad: WR Daurice Fountain, LB Elijah Lee

Las Vegas Raiders

Promoted from practice squad: S Matthias Farley

Los Angeles Chargers

Promoted from practice squad: CB Kemon Hall, TE Richard Rodgers

Miami Dolphins

Promoted from practice squad: WR River Cracraft, S Verone McKinley III

Minnesota Vikings

Promoted from practice squad: S Myles Dorn

New England Patriots

Promoted from practice squad: WR Lil’Jordan Humphrey, LB Harvey Langi

New Orleans Saints

Promoted from practice squad: DT Christian Ringo
Released: C Nick Martin

New York Giants

Promoted from practice squad: S Tony Jefferson, OLB Quincy Roche

New York Jets

Promoted from practice squad: T Grant Hermanns

Philadelphia Eagles

Promoted from practice squad: WR Britain Covey, TE Noah Togiai

San Francisco 49ers

Promoted from practice squad: S Tashaun Gipson, WR Malik Turner

Tampa Bay Buccaneers

Promoted from practice squad: LB Genard Avery

Tennessee Titans

Promoted from practice squad: LB Joe Jones, RB Trenton Cannon

The Cardinals’ moves come as a reaction to yesterday’s injury news. Baccellia’s roster spot was opened up in the short-term by the injury to Rondale Moore, but he won’t simply be a stop-gap. Arizona signed the 25-year-old to a two-year deal to remain on the main roster, per Aaron Wilson of Pro Football Network (Twitter link). A UDFA out of Washington, Baccellia has yet to make a regular season NFL appearance.

Likewise, the fact that Ford will miss at least the first four weeks of the season makes the re-acquisition of Garcia a logical one. The former fourth-rounder has plenty of guard experience, including his three seasons spent in Arizona. It was only in 2021 that he logged any starts, but he could provide veteran depth behind Justin Pugh at least until Ford is able to return.

Addison, 35, was one of several veteran signings the Texans made this offseason to add depth to their front seven. He had a productive season with the Bills last season, notching seven sacks despite not starting any games. In his absence, Harris and Pierre-Louis will provide depth in the edge rush department on Sunday, and likely the short-term future as well.

Quick reminder that standard game day practice squad promotions are a recent development from the new CBA and COVID-19 seasons. Essentially, each team is able to promote two players from the practice squad to the active roster for game days. The players will automatically revert back to the practice squad after the game, not needing to clear waivers before rejoining the developmental roster. A player can only be promoted three times per season. If a team would like to promote a player for a fourth game, they’ll need to go through the normal method of creating space on the 53-man roster to promote them and have them clear waivers before placing them back on the practice squad. That is the difference between “Signed to 53-man roster” from the practice squad and “Promoted from practice squad.”

Wednesday NFL Transactions: AFC West

August 31st, 2022 at 3:48pm CST by Sam Robinson

Following the 53-man roster cutdown deadline Tuesday, many teams will make slight tweaks to their rosters. In addition to waiver claims, teams can begin constructing their 16-man practice squads today. These Broncos, Chargers, Chiefs and Raiders moves are noted below.

Here are Wednesday’s AFC West transactions, which will continue to be updated throughout the day.

Denver Broncos

Re-signed:

NT Mike Purcell, TE Eric Tomlinson

Signed to practice squad:

DL McTelvin Agim, OL Quinn Bailey, CB Faion Hicks, WR Kendall Hinton, QB Josh Johnson, OLB Jonathan Kongbo, LB Kana’i Mauga, CB Ja’Quan McMillian, G Netane Muti, RB Devine Ozigbo, TE Dylan Parham, WR Darrius Shepherd

Kansas City Chiefs

Signed to practice squad:

DB Zayne Anderson, G Mike Caliendo, LB Jack Cochrane, RB Jerrion Ealy, WR Daurice Fountain, TE Jordan Franks, S Nazeeh Johnson, DE Azur Kamara, LB Elijah Lee, QB Chris Oladokun, WR Cornell Powell, C Austin Reiter, DT Danny Shelton, DT Taylor Stallworth

Las Vegas Raiders

Released from IR:

LB Kyler Fackrell

Signed to practice squad:

LB Curtis Bolton, CB Isiah Brown, CB Bryce Cosby, S Matthias Farley, TE Cole Fotheringham, QB Chase Garbers, C Hroniss Grasu, G Jordan Meredith, OT Bamidele Olaseni, WR Dillon Stoner, DE Myron Tagovailoa-Amosa, DE Zach VanValkenburg, RB Austin Walter, WR Isaiah Zuber

Los Angeles Chargers

Signed:

RB Sony Michel (story)

Waived:

RB Larry Rountree

Signed to practice squad:

T Zack Bailey, WR Michael Bandy, DL Christian Covington, DL Joe Gaziano, CB Kemon Hall, CB Michael Jacquet, TE Hunter Kampoyer, OLB Carlo Kemp, S Raheem Layne, LB Tyreek Maddox-Williams, WR Jason Moore Jr., WR Joe Reed, T Foster Sarell, DB Mark Webb Jr.

Chargers Trim Roster To 53

August 30th, 2022 at 4:37pm CST by Adam La Rose

As final cuts continue to be announced, the Chargers have unveiled their list of departing players. Here is the final tally:

Released:

DL Christian Covington

Waived:

Waived/injured:

TE Sage Surratt

Covington represents by far the most experienced player being let go. He spent just one season in Los Angeles, starting three of his 16 appearances. While the 28-year-old Canadian set a new career-high in tackles with 52, he was part of the league’s third-worst run defense. That, coupled with Covington’s small roster bonus, made him a logical cut candidate.

The Chargers have a crowded backfield to work with, and one main training camp storyline has been the competition to establish the pecking order behind Austin Ekeler. By waiving Nabers, however, the team can keep one more back on the 53-man roster. Given their passing efficiency, eliminating the fullback position from the offense would allow them to keep the former UDFA on the practice squad (if at all); if not, Nabers will need to find one of the few remaining teams with a spot for his skillset.

Surratt carries the most upside amongst the TE departures. The converted WR didn’t play during his rookie season, but demonstrated his talent in college, including a 1,000-yerd season at Wake Forest. Given his absence from the 2020 college season, as well as the 2021 NFL campaign, though, keeping the six-foot-three, 215-pounder as a depth option behind Gerald Everett could better be done via the practice squad.

NFL COVID-19 List Updates: 12/29/21

December 29th, 2021 at 3:19pm CST by Sam Robinson

Several key players returned to practice Wednesday. Here are the latest COVID-19 updates from around the league:

Arizona Cardinals

Activated from reserve/COVID-19 list: P Andy Lee
Placed on reserve/COVID-19 list: OLB Devon Kennard

Atlanta Falcons

Placed on reserve/COVID-19 list: DL Jonathan Bullard, S Jaylinn Hawkins, TE Hayden Hurst
Placed on practice squad/COVID-19 list: OL Willie Beavers

Baltimore Ravens

Activated from reserve/COVID-19 list: LB Chris Board, LB Tyus Bowser, LB Justin Houston, S Geno Stone, LB Kristian Welch
Activated from practice squad/COVID-19 list: OT David Sharpe, QB Christ Streveler

Buffalo Bills

Activated from reserve/COVID-19 list: WR Cole Beasley, WR Gabriel Davis, DE A.J. Epenesa, OL Jon Feliciano

Carolina Panthers

Activated from reserve/COVID-19 list: OL Dennis Daley, G Pat Elflein
Activated from practice squad/COVID-19 list: DE Austin Larkin
Placed on reserve/COVID-19 list: LB Haason Reddick, QB P.J. Walker

Cincinnati Bengals

Activated from reserve/COVID-19 list: WR Mike Thomas
Placed on reserve/COVID-19 list: LB Germaine Pratt

Cleveland Browns

Placed on reserve/COVID-19 list: QB Nick Mullens

Dallas Cowboys

Activated from reserve/COVID-19 list: DT Trysten Hill, S Malik Hooker
Activated from practice squad/COVID-19 list: RB JaQuan Hardy, WR Brandon Smith

Denver Broncos

Activated from reserve/COVID-19 list: C Lloyd Cushenberry
Placed on reserve/COVID-19 list: T Calvin Anderson, WR Tim Patrick, S Caden Sterns
Placed on practice squad/COVID-19 list: WR Tyrie Cleveland

Detroit Lions

Activated from reserve/COVID-19 list: WR Trinity Benson, T Matt Nelson, WR Quintez Cephus
Placed on reserve/COVID-19 list: DL Michael Brockers, G Halapoulivaati Vaitai
Placed on practice squad/COVID-19 list: WR Geronimo Allison

Green Bay Packers

Activated from reserve/COVID-19 list: WR Marquez Valdes-Scantling
Activated from practice squad/COVID-19 list: OT Cole Van Lanen
Placed on reserve/COVID-19 list: DB Henry Black, TE Tyler Davis, DL Kingsley Keke, P Cody Bojorquez
Placed on practice squad/COVID-19 list: CB Jayson Stanley

Houston Texans

Activated from reserve/COVID-19 list: DL Maliek Collins, WR Brandin Cooks, K Ka’imi Fairbairn, LB Jonathan Greenard, LB Kamu Grugier-Hill, LB Neville Hewitt, LB Jordan Jenkins, DL Jaleel Johnson, DL Roy Lopez, DB A.J. Moore, S Eric Murray, LB Derek Rivers, LB Eric Wilson, C Justin Britt, G Lane Taylor
Activated from practice squad/COVID-19 list: CB Cre’Von LeBlanc
Placed on reserve/COVID-19 list: DL Ron’Dell Carter, WR Chris Moore
Placed on practice squad/COVID-19 list: K Dominik Eberle

Indianapolis Colts

Activated from reserve/COVID-19 list: G Mark Glowinski, G Quenton Nelson, DE Kemoko Turay, DB Rock Ya-Sin, TE Farrod Green
Activated from practice squad/COVID-19 list: QB James Morgan, TE Eli Wolf

Jacksonville Jaguars

Placed on reserve/COVID-19 list: WR Jaydon Mickens, LB Dylan Moses, LT Cam Robinson, S Johnathan Ford
Placed on practice squad/COVID-19 list: WR Josh Hammond

Kansas City Chiefs

Activated from reserve/COVID-19 list: TE Travis Kelce, K Harrison Butker, CB Rashad Fenton, P Tommy Townsend, S Armani Watts
Activated from practice squad/COVID-19 list: LB Darius Harris

Las Vegas Raiders

Activated from reserve/COVID-19 list: G Jermaine Eluemunor, CB Brandon Facyson, S Roderic Teamer
Placed on reserve/COVID-19 list: DT Kendal Vickers, TE Darren Waller (story)
Placed on practice squad/COVID-19 list: G Lester Cotton, G Jeremiah Poutasi

Los Angeles Chargers

Activated from reserve/COVID-19 list: OLB Joey Bosa, WR Jalen Guyton, CB Kemon Hall, C Corey Linsley, DB Trey Marshall, LB Cole Christiansen
Placed on reserve/COVID-19 list: LB Kenneth Murray, T Storm Norton

Los Angeles Rams

Placed on reserve/COVID-19 list: RB Raymond Calais

Miami Dolphins

Activated from reserve/COVID-19 list: TE Cethan Carter, CB Justin Coleman, G Robert Jones, OL Greg Mancz, LB Duke Riley, WR Lynn Bowden
Placed on practice squad/COVID-19 list: C Spencer Pulley

Minnesota Vikings

Activated from reserve/COVID-19 list: RB Dalvin Cook
Activated from practice squad/COVID-19 list: CB Tye Smith
Placed on reserve/COVID-19 list: DE Patrick Jones II

New England Patriots

Activated from reserve/COVID-19 list: RB Rhamondre Stevenson, OLB Harvey Langi
Placed on reserve/COVID-19 list: LB Ja’Whaun Bentley, LB Matt Judon

New Orleans Saints

Activated from reserve/COVID-19 list: LB Demario Davis, QB Taysom Hill, QB Trevor Siemian, LB Kwon Alexander, LB Kaden Elliss, S J.T. Gray, OT Jordan Mills, OG James Carpenter, DT Christian Ringo, TE Adam Trautman, S Jeff Heath
Placed on reserve/COVID-19 list: S Marcus Williams

New York Giants

Activated from reserve/COVID-19 list: DB Keion Crossen, DB Adoree’ Jackson, WR John Ross
Placed on reserve/COVID-19 list: DL Dexter Lawrence

New York Jets

Activated from reserve/COVID-19 list: CB Michael Carter II, DT Folorunso Fatukasi, QB Joe Flacco, DL Jonathan Marshall, LB Hamsah Nasirildeen, TE Kenny Yeboah
Activated from practice squad/COVID-19 list: LB Noah Dawkins, CB Lamar Jackson, DL Tanzel Smart
Placed on practice squad/COVID-19 list: CB Ken Webster

Philadelphia Eagles

Activated from reserve/COVID-19 list: T Le’Raven Clark, T Andre Dillard, DE Tarron Jackson, DE Ryan Kerrigan

Pittsburgh Steelers

Activated from practice squad/COVID-19 list: WR Rico Bussey

Seattle Seahawks

Activated from reserve/COVID-19 list: DT Bryan Mone, CB D.J. Reed
Activated from practice squad/COVID-19 list: CB Michael Jackson

Tampa Bay Buccaneers

Placed on reserve/COVID-19 list: CB Jamel Dean, WR Mike Evans, CB Sean Murphy-Bunting, WR Breshad Perriman

Tennessee Titans

Activated from reserve/COVID-19 list: T Taylor Lewan, DB Elijah Molden, G Rodger Saffold
Placed on reserve/COVID-19 list: ILB Jayon Brown, OLB Bud Dupree, WR Julio Jones, DB Buster Skrine, WR Nick Westbrook -Ikhine
Placed on practice squad/COVID-19 list: CB Briean Boddy-Calhoun

Washington Football Team

Placed on reserve/COVID-19 list: DB Darryl Roberts
Placed on practice squad/COVID-19 list: OL Beau Benzschawel, T David Steinmetz