Novak Djokovic, 2012 Australian Open champion.

Novak Djokovic, 2012 Australian Open champion.

Victoria Azarenka celebrates her win over Maria Sharapova to become 2012 Australian Open champion. January 2012. #tennis

Nole and Rafa. Australian Open, January 2012. #tennis

Aussie fans celebrate Australia Day. Australian Open, January 2012. #tennis

Li Na of China. Australian Open, January 2012. #tennis

Jo-Wilifried Tsonga reaches for the ball. January 2012. #tennis

Kei Nishikori. January 2012. #tennis

World #1 Novak Djokovic, Serbia. ITF Official Olympic book.

Serena Williams gets ready to serve. January 2012. #tennis

Workers dealing with the rain prior to the Men's Singles Semifinals on Day 13 of the 2012 US Open. - Getty Images

Play Hard - Look Good!

2012 Australian Open Winner

Fans trying to stay dry during a rain delay prior to the Men's Singles Semifinals match on Day 13 of the 2012 US Open. - Getty Images

Andy Murray Wimbledon 2012 Acceptance Speech

Novak Djokovic

Samantha Stosur (AUS)[7] plays Laura Robson (GBR) in Louis Armstrong Stadium on Day 7 of the 2012 US Open. - Billie Weiss/USTA

Kim Clijsters (BEL) and her partner Bob Bryan (USA) react after defeating Irina Falcon (USA) and Steve Johnson (USA) at the 2012 US Open. - Getty Images

Legend Rod Laver with Novak after ceramony

Dang, that lunge.

Roger Federer - Australian Open 2013