"As the Vikings try to avoid their first ever 2-14 season, they could be without running back Adrian Peterson for at least one more game beyond Week 13.

Per a league source, the high ankle sprain suffered by Peterson could keep him on the sidelines for next Sunday's game against the Lions.

Peterson suffered the injury on November 20 against the Raiders. It looked much worse than it ended up being, but it has been bad enough to keep him on the sidelines for two weeks and counting."