Maurice Edu and Bobby Boswell face off in 2014 MLS All-Star Game Vine Olympics | SIDELINE

Professional athletes love to compete. In fact, they do it for a living. That's what makes them professionals.

Their competitive streaks aren't limited to their sport of profession, however. In fact, many pro athletes are ultra-competitive at everything they do.

The 2014 MLS All-Star duo of DC United's Bobby Boswell and the Philadelphia Union's Maurice Edu seem to be no different.

The two squared of in the first-ever Vine Olympics, organized and hosted by the MLS social media team. There was a game of hand slaps, paper-rock-scissors, thumb war and more.

And in the end, there was only one champion.