Vikings RB Adrian Peterson was carted off the field of the team's Week 11 game against the Raiders with a left ankle injury. His return is questionable.
Peterson entered Sunday fifth in the NFL with 846 rushing yards. He missed time last season with an ankle injury and has dealt with one this season.
Toby Gerhart will take over as the team's lead back. He entered Sunday with 17 carries for 100 yards this season.