The Crazy Faces of Tennis

Andy Murray was just a little bit excited after this Australian Open victory in 2010.

Think tennis can be a little frustrating? Just take a look at Caroline Wozniacki here.

Judging from the look on Novak Djokovic's face, hitting a backhand isn't as easy as it seems

Serena Williams is never one to hide her emotions on the court...

Neither is her sister, Venus!

This is the kind of face most people make when facing Novak Djokovic, like Rafael Nadal was at the 2011 U.S. Open.

This is Andy Roddick's reaction after WINNING the 2007 U.S. Open!

Sometimes the game comes so easily to Roger Federer that he could beat you in his sleep. In this photo, it looks like he was taking that challenge.

Maria Sharapova can look awfully fierce when she's on the other side of the net.

Yes, tennis takes a lot of concentration. Just ask actor Will Ferrell, who was showing off his volleying skills at U.S. Open Kids Day in 2009.