Redskins Injury Update: Adrian Peterson has grade 1 high ankle sprain and grade 2 low ankle sprain, says he's good

The Redskins RB group is hurting right now, and they face a short week where they will travel to Minnesota to face the Vikings on Thursday Night Football. Adrian Peterson injured his ankle on Sunday during a play where he fumbled against the 49ers. Bill Callahan said he was scheduled for an MRI today and now we know the results.

Adrian Peterson told ESPN's Josina Anderson that he suffered a grade 1 high ankle sprain and a grade 2 low ankle sprain. He also added that he's good, which seems like an overly optimistic outlook considering his injuries. Peterson played through multiple injuries last season, but there is no word on whether he will be good for a short week game againt his former team.

Peterson has been interim Head Coach Bill Callahan's workhorse since taking over for Jay Gruden. Callahan has said loudly and often that he wants to run the ball, and AP was his guy. The Redskins were missing their current #2 RB Chris Thompson on Sunday as he dealt with turf toe.

If both backs can't go this week, the Redskins will only have two RBs and a fullback on the 53-man roster. Wendell Smallwood saw some action this week and will definitely get a lot of carries if Peterson and Thompson are out. Craig Reynolds was signed from the practice squad last week, and Josh Ferguson was recently added to the PS. Washington also finally added a FB when they signed Michael Burton.