Green Bay Packers safety Nick Collins is getting quite a bit of media attention after Monday night's game against the Chicago Bears.
And it isn't for his on-field performance.
Collins was caught on camera throwing his mouthguard at a belligerent Bears fan after losing to the Bears, but it appears that he was provoked.
Even though player-fan interaction is strongly discouraged by most teams, this isn't the first time an athlete has had an altercation with a fan.
Here are the top-10 most bizarre player-fan confrontations in sports.