Minnesota Vikings running back Adrian Peterson missed team practice on Friday, the team announced. Peterson is dealing with a previously unknown groin injury. He was held out of practice on Thursday, but everyone assumed it was a "rest" day -- something the Vikings did not deny.
It's unclear if Peterson will be available for the team's Week 11 matchup against the Seattle Seahawks. It doesn't sound like there's a whole lot of urgency out of the Vikings camp, so there might not be cause to worry, but the Vikings will obviously need his help to win on Sunday.
Seattle is probably the best team in the NFL, depending on how you view the undefeated Kansas City Chiefs. They also have the best secondary in the NFL, so the Vikings really need Peterson healthy to give them any chance of winning on Sunday.
Fantasy Impact: Peterson will probably play, unless the injury is more serious than we previously thought ... which is definitely possible. Fantasy owners should worry, but they should keep him in the lineup until they hear otherwise on Sunday. Keep a backup option handy, but otherwise start him as you usually would.