Tennessee coach Mike Munchak gambled by playing much of his starting offense in the final preseason game.
Minnesota coach Leslie Frazier wanted no part of that, and was reminded just how dangerous the NFL can be when one of his backups was carted off the field in the second quarter.
Percy Harvin returned the opening kickoff 105 yards for a touchdown and Marcus Sherels scored on a 77 yard punt return early in the third quarter, helping the Minnesota Vikings beat the Detroit Lions 20-13 Sunday.