There likely will be a new head coach and a new general manager in San Diego next season. They probably won't have faith that Mathews can be a "foundation" starting running back.
Here are the other injuries from Week 15:
- The Baltimore Ravens might have the most injury problems in the NFL, with their defense in especially terrible shape. Now their offense has issues, too.
Wide receiver Torrey Smith suffered a concussion during Sunday's 34-17 loss to the Denver Broncos. So did backup running back Bernard Pierce. Linebacker Terrell Suggs battled through a biceps injury and clearly wasn't fully healthy. The Ravens suddenly have to worry about getting healthy enough just to win the AFC North.