Frazier defends limiting Harvin’s role

Rosenthal recently pointed out that Vikings receiver Percy Harvin wasn’t on the field for nearly half of Minnesota’s offensive snaps in a 24-20 loss to the Buccaneers.  On Wednesday, Vikings coach Leslie Frazier defended the decision to give Harvin reduced reps. “There’s nothing he has to prove,” Frazier said, per Tom Pelissero of 1500ESPN.com. “We…