The Minnesota Vikings and Green Bay Packers are one of the most fierce rivalries in the NFL. Throughout their storied history players have left one team and gone to the other, many times out of spite. A couple notable players to leave the Packers and go to the Vikings were Ryan Longwell, Darren Sharper, and of course Greg Jennings.
Jennings was a player who seemingly went out of spite because he felt slighted by Aaron Rodgers and the Green Bay Packers franchise as a whole for not signing him to a long term deal.