Track all of Sunday's injuries for Week 13

The Minnesota Vikings lost two key defensive starters during their 38-7 blowout loss to the Seattle Seahawks.

Linebacker Anthony Barr and safety Harrison Smith each left early in the first quarter and did not return. Barr had a groin injury and Smith suffered a hamstring injury. They were dealing with the same injuries earlier in the week before they were cleared to play.

Smith went to the locker room prior to the following a first-quarter defensive series and Barr was seen sitting on the bench in the first half.

Here are some other injuries we've been tracking Sunday:

1. Bills running back LeSean McCoy went to the locker room in the second half but cleared the concussion protocol and returned.

2. Browns wideout Travis Benjamin was ruled out in the second half with a shoulder injury. Offensive lineman Joel Bitonio didn't return after suffering an ankle injury. Cornerback Josh Shaw didn't return after suffering a back injury. Wideout Marlon Moore left with a rib injury and didn't return.

3. Niners tight end Vance McDonald and linebacker Aaron Lynch each suffered concussions in the team's 26-20 overtime victory over the Bears.

4. Bills cornerback Stephon Gilmore told reporters after the team's 30-21 win over the Texans that he will have an MRI on his injured left shoulder Monday. Gilmore, who left in the second half, had his left arm in a sling after the game. Linebacker Tony Steward sustained a back injury and was ruled out prior to the second half.

5. Ravens tight end Crockett Gillmore left during a 15-13 loss to the Dolphins with a back injury and didn't return.

6. Jaguars wideout Rashad Greene left versus the Titans with a shoulder injury and did not return.

7. Dolphins wideout Kenny Stills left with an ankle injury against the Ravens and didn't return.

8. Giants offensive lineman Ereck Flowers was ruled out with an ankle sprain.

9. Rams cornerback Janoris Jenkins was evaluated for a concussion twice against the Cardinals.

10. Ravens quarterback Matt Schaub was helped off the field but later returned to the game.

11. Chargers cornerback Brandon Flowers (knee) was carted off the field during the first quarter and did not return. Flowers was seen leaving the stadium in a walking boot.

Wide receiver Dontrelle Inman (neck) was carted off the field in the first quarter and did not return. Chargers coach Mike McCoy after the game said Inman's initial tests showed positive signs, as the wideout was able to move his hands and feet. 

12. The Broncos suffered some blows on offense with tailback C.J. Anderson (ankle) and tight end Vernon Davis (concussion) against the Chargers. Both left early in the game, and did not return. Broncos linebacker Danny Trevathan (concussion) also did not return to the contest.

13. Saints cornerback Delvin Breaux injured his left leg in a wild 41-38 loss to the Panthers.

14. The Chiefs lost defensive lineman Mike DeVito to a concussion in their win over the Raiders.

15. Colts QB Matt Hasselbeck (shoulder/neck) was ruled out in the second half. Charlie Whitehurst replaced Hasselbeck.

16. Steelers corner William Gay entered concussion protocol during the team's Sunday night win.