04:47 PM ET 02.10 | The Minnesota Vikings are reportedly trying to trade star wide receiver Percy Harvin. Harvin apparently blew up at head coach Leslie Frazier in front of the team, and he was put on injured reserve shortly afterwards. The mercurial receiver is an explosive talent, but has had issues now with both Frazier and former Vikings coach Brad Childress. There's no word on what the Vikings are asking in return for Harvin, but it should be substantial. Harvin's injury history and off-field issues may score off some teams, but when he's healthy, he is one of the best playmakers in the NFL.