Justin Timberlake and Jessica Alba - U.S. Open 2013: Stars hit the tennis courts

As the U.S. Open comes to an end, take a look back at the celebrities caught taking in all the action courtside ... Justin Timberlake and Jessica Alba looked to be celebrity spotting too, as they pointed at spectators in the stand at the Rafael Nadal and Novak Djokovic match during the U.S. Open final. 

Justin Timberlake and Jessica Alba - U.S. Open 2013: Stars hit the tennis courts