Update: Peterson injured one of his ankles on his first carry early in Sunday's win over Tennessee, but was able to play a full game. "The whole game I was fighting through it," Peterson told ESPN 1500 am Twin Cities. "The wrong tackle aggravates it, but I got through it."
Recommendation: Peterson still gained 88 yards on 17 carries despite the ailment, so it must be minor. Still, check to see if becomes an issue in practice this week.