Woodhead will have more tests tomorrow, but the team is concerned it's a fractured fibula, which could end his season.
Mathews is expected to miss a month with a sprained MCL. The early signs are that Woodhead will be out much longer.
Here are some other injuries that we're following.
»Ravens tight end Dennis Pitta was carried off in a stretcher after sustaining a noncontact injury. The team later announced Pitta hurt his right hip, the same one he injured last season. He was taken to a local hospital for further evaluation. NFL Media Insider Ian Rapoport reported, via a source who has spoken to Pitta, that the tight end dislocated his hip. Tests on Monday will determine if the hip is fractured.
» The Steelers lost three players for the remainder of their game against the Carolina Pantherson Sunday night: Ike Taylor (forearm), Ryan Shazier (right knee) and Jarvis Jones (wrist). Taylor returned from the locker room without his pads and had his arm in a sling and coach Mike Tomlin said Taylor broke his forearm.
» The Redskins dealt with a slew of injuries against the Eagles. Cornerback DeAngelo Hall was helped off in the third quarter with an Achilles injury and did not return. Hall later told reporters he suffered an Achilles tear. Star pass rusher Jason Hatcher exited and did not see the field again on Sunday. Coach Jay Gruden called it a "mild hamstring" after the game.