Today’s practice squad moves:
Arizona Cardinals
Buffalo Bills
Carolina Panthers
Detroit Lions
Los Angeles Rams
New Orleans Saints
Tampa Bay Buccaneers
Lorenzo Mauldin‘s season has likely ended before it could even start. The linebacker was informed today that he will likely need back surgery, coach Todd Bowles told reporters. 
Mauldin was placed on injured reserve before the season opener and, at the time, there was some hope that he could return from IR. Unfortunately, that won’t be possible after he undergoes a major operation.
The Jets selected Mauldin in the third round of the 2015 draft. Although he has been a regular on defense, nagging injuries limited his production over the last two seasons. He was on the field for 34% of the Jets’ defensive plays last year, a step up from his playing time as a rookie, but he missed five games and appeared to regress. He drew subpar ranking from Pro Football Focus for the second straight year, as the outlet placed him 80th in performance among 110 qualified edge defenders.
When Mauldin returns to action in 2018, he may face league discipline for an off-the-field incident.
There’s definitely a youth movement in Cleveland and Los Angeles. According to data released by the NFL on Thursday, the Browns had an average age of 24.17 on their Week 1 roster, making them the league’s youngest team. The Rams – who are directed by the league’s youngest head coach – were not far behind with an average age of 25.11. 
As a whole, the game is younger than ever. This year, there a total of nine teams started the season with an average age less than 26. A few clubs are bucking the trend, however. The Cardinals had the “oldest” roster in the NFL with an average age of 27.47. Arizona had 14 players at the age of 30 or over, tying them for the league lead with the Ravens.
The league also compiled data on the colleges with the most players in the NFL. This year, Alabama and LSU tied for the lead with 39 each. LSU had sole leadership atop the perch from 2014-2016, but they now have the company of another SEC school.
A complete breakdown of every NFL team’s depth chart can be found at RosterResource.com.
The Ravens have placed running back Danny Woodhead on injured reserve with a hamstring) injury. To take his place on the 53-man roster, the Ravens have promoted Jeremy Langford from the practice squad. 
The Ravens initially thought they would be without Woodhead for 4-6 weeks. Unfortunately, further tests showed that his condition was worse than initially thought. He’s now facing a 6-8 week timetable, meaning that the Ravens were essentially forced to clear out his roster spot. Per league rules, Woodhead can become one of two players to return from IR for the Ravens, but he’ll first have to sit out for a full eight weeks.
Woodhead joined the Ravens on a three-year, $8.8MM deal with $4.25MM guaranteed back in March. It was a surprisingly large investment considering Woodhead’s age, injury troubles in 2016, and how weak the RB market has been.
A former fourth-round pick, Langford rushed for 537 yards and six touchdowns as a rookie with the Bears. At one point it looked like his future was bright in Chicago, but he was displaced from the roster altogether in early September. The Bears cut Langford in favor of UDFA Taquan Mizzell, who ironically was released by the Ravens. In 2016, he had only 62 carries in 12 games.
The Texans are set to meet with tight end Gary Barnidge, according to Aaron Wilson of The Houston Chronicle (on Twitter). Barnidge could give Houston some reinforcements at the position as C.J. Fiedorowicz, Stephen Anderson, and Ryan Griffin all deal with the after effects of their concussions. 
For now, the Texans’ sole “addition” at tight end will come from the promotion of tight end Evan Baylis off of the practice squad. They likely opted against meeting with Barnidge and other free agent TEs sooner since this is a short week and they had only four days to prepare for tonight’s game against the Bengals.
Barnidge was released by the Browns in April, freeing the team from the remaining two years on his contract. The veteran first broke out in 2015 with 79 receptions, 1,043 yards and nine touchdowns. He couldn’t match those numbers last season, but he still finished with 55 catches for 612 yards and two TDs. Barnidge also proved to be durable, appearing in 61 of 64 possible games for the Browns over the last four seasons. It wasn’t necessarily easy to produce in Cleveland, but Barnidge found a way.
“In the last two years with eight different quarterbacks, I was able to still put up really good numbers,” Barnidge said in July. “I was still one of the top tight ends in the NFL over a two-year period … I don’t think there’s any other guy that can say they’ve done that.”
Free agent quarterback Colin Kaepernick is working out five days a week and is back to his 2013 weight, 230 pounds, as he awaits a potential NFL opportunity, Mike Florio of Pro Football Talk reports. Thanks partially (perhaps entirely) to his social activism, Kaepernick hasn’t garnered a single offer since he and the 49ers parted ways in March. While the 29-year-old would like to resume his career, he’s not saying it publicly because he worries that doing so would lead to further claims that he’s a distraction, Florio suggests.
More from around the game:
Zach Links contributed to this post.
The latest from around the AFC:
Today’s workout updates, with nearly all links going to veteran NFL reporter Howard Balzer’s Twitter account:
Buffalo Bills
Chicago Bears
Green Bay Packers
Indianapolis Colts
Jacksonville Jaguars
Kansas City Chiefs
New England Patriots
New Orleans Saints
New York Jets
Philadelphia Eagles
Tennessee Titans
Washington Redskins
Today’s practice squad moves:
Arizona Cardinals
Buffalo Bills
Chicago Bears
Dallas Cowboys
Detroit Lions
Green Bay Packers
Indianapolis Colts
Jacksonville Jaguars
Los Angeles Chargers
Los Angeles Rams
Minnesota Vikings
New England Patriots
Pittsburgh Steelers
Seattle Seahawks
The 49ers hosted a few established defensive linemen on Wednesday, working out free agents Ahtyba Rubin, Jaye Howard, Kendall Langford and Tony McDaniel, according to Field Yates of ESPN (Twitter link). They also tried out defensive tackle Stefan Charles and a pair of defensive backs – Devonte Johnson and Josh Thornton – per Mike Florio of Pro Football Talk.
Rubin, perhaps the most notable of the bunch, spent the previous two years in the 49ers’ divisio – the NFC West – with Seattle. The Seahawks, who play the 49ers this week, released Rubin at the outset of the month, and his only known interest prior to his meeting with San Francisco came from the Bills. The 31-year-old DT started in all 32 appearances with the Seahawks, registering 75 tackles and three sacks, and previously started in 75 of 99 games as a Brown from 2008-14. Kyle Shanahan, the Niners’ rookie head coach, was Cleveland’s offensive coordinator during Rubin’s last season there.
Howard, 28, worked out for the Lions this week before his visit to San Francisco. The former Chief has been on the hunt for a job since the Bears released him Sept. 2. Howard didn’t play a down in Chicago, which signed him in May after the Chiefs released him, and is coming off an injury-played 2016. After Howard posted back-to-back 16-game seasons and combined for 24 starts from 2014-15, a hip ailment limited him to eight and five in those categories last year.
Like Rubin and Howard, Langford and McDaniel earned summer releases from their previous employers. The Colts cut Langford with a failed physical designation in August, indicating that the 31-year-old hadn’t recovered from the knee injury that ended his 2016 campaign in October. He was, however, the picture of durability from 2008-15 with the Dolphins, Rams and Colts, appearing in eight straight 16-game seasons. Langford’s also just two years removed from a career-high seven-sack showing.
McDaniel, whom the Saints released at the beginning of the month, is an 11-year veteran who spent three of the previous four years in Seattle. The 295-pounder is familar with first-year 49ers defensive coordinator Robert Saleh, who worked on the Seahawks’ staff during one of McDaniel’s seasons with them (2013). McDaniel started a personal-best 15 games that season and notched 53 tackles (a career mark) and two sacks.
It’s unclear if the 49ers will sign any of these players, but doing so would perhaps improve a defensive line that didn’t generate much pressure during their 23-3 loss to the Panthers in Week 1. The 49ers hit Panthers quarterback Cam Newton just twice and failed to register a sack in Saleh’s debut atop their defense. They did, however, hold Carolina to a measly 3.1 yards per rush on 38 attempts.