The Dolphins have already ruled out quarterback Ryan Tannehill for their Week 7 contest against the Lions, and the NFL is now investigating how Miami handled reporting Tannehill’s shoulder injury in Week 6, as Cameron Wolfe of ESPN.com reports. Tannehill was a full participant in both Wednesday and Thursday practice last week, but was limited on Friday before being inactive against the Bears on Sunday. The league will often look into such cases where injury designations present something of a question mark; some clubs are subsequently fined, others are cleared, tweets Tom Pelissero of NFL.com. Without Tannehill available, Miami will once again deploy Brock Osweiler, who threw for a career-high 380 yards against Chicago.

Here’s more injury news from around the NFL:

• Falcons running back Devonta Freeman will undergo surgery on Thursday to repair his groin injury, per Vaughn McClure of ESPN.com (Twitter link). Freeman’s recovery timeline isn’t yet clear, but reports yesterday did indicate that Freeman — who was placed on injured reserve Tuesday — could return later this season. Because he’s now on IR, Freeman must miss at least eight games before coming back. Various health issues have limited Freeman to just two games this season, during which he averaged 4.9 yards per carry on 14 touches. With Freeman unavailable, Atlanta will turn to a tandem of Tevin Coleman and Ito Smith in its backfield.
• Tavon Austin is getting a second opinion on his groin injury in the near future, and the Cowboys will wait to hear that diagnosis before deciding on an injured reserve move, tweets Clarence Hill of the Star Telegram. Austin, who Dallas acquired from the Rams earlier this year, has lined up at both receiver and running back this season, managing seven receptions and six rushes on the year. If Austin is placed on IR, the Cowboys will continue to lean on an uninspiring group of pass-catchers that includes Allen Hurns, Michael Gallup, Cole Beasley, and Deonte Thompson. Dallas would need to find a new punt returner, as Austin has handled all but one of the club’s punt returns.
• Browns linebacker Joe Schobert will be sidelined for “a little while” as he deals with with a hamstring injury, head coach Hue Jackson told reporters, including Mary Kay Cabot of Cleveland.com (Twitter link). Losing Schobert for any amount of time is devastating for Cleveland, as he’s played nearly every snap on defense while ranking as a top-10 linebacker league-wide, per Pro Football Focus. With Schobert down, the Browns will likely deploy Christian Kirksey and Jamie Collins as their nickel linebackers. Cleveland’s linebacker depth already took a hit earlier this week when James Burgess was placed on injured reserve.
• Turning to the college game, Ole Miss receiver D.K. Metcalf will miss the remainder of the season after suffering a neck injury last weekend, according to Nick Suss of the Clarion-Ledger. Metcalf is a redshirt sophomore, so he could potentially enter the 2019 draft if he so chooses. But given his injury, Metcalf may choose to head back to school in order to put more highlights on tape. Per Suss, Metcalf is viewed as a potential Day 2 pick.