by Alex Marvez

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Peterson and teammate Naufahu Tahi were involved in horseplay that accidentally led to the Vikings fullback being unable to play Sunday against the Packers, a source told FOXSports.com.

Peterson and Tahi were wrestling Saturday in the team's locker room when the latter accidentally injured the area around his eye. Vikings coaches believed Tahi was going to play Saturday night but had to declare him inactive for the Packers game after overnight swelling.

Even without his lead blocker, Peterson still rushed for 97 yards and one touchdown in Minnesota's 38-26 win over Green Bay.

Tahi, a four-year NFL veteran, had played in all seven of Minnesota's previous games this season with one start. His responsibilities in Minnesota's offense Sunday were assumed by backup tight end Jeff Dugan, who caught one of quarterback Brett Favre's four touchdown passes.

Peterson and St. Louis running back Steven Jackson are tied for the NFC's rushing lead with 784 yards. Tennessee's Chris Johnson leads the league at 824 yards.