Novak Djokovic and Andy Murray will clash in the semifinals of the Australian Open tonight. The stage is set for an epic clash and both these men will have their gorgeous girlfriends on the stands to cheer them up. But which of the lucky girls will have the last laugh?

Novak Djokovic, the World No. 1, boasts not only of his rank but also his Serbian girlfriend Jelena Ristic.

Ristic, the toned, light-haired Serbian is a classic beauty, is known as Djokovic's biggest fan. The couple has been dating for more than five years.

While Djokovic and Ristic are going strong, Murray and his girlfriend Kim Sears have seen many ups and downs in their relationship.

Sears, daughter of Nigel Sears, former tennis coach of the Slovak player Daniela Hantuchova, is currently in a live-in relationship with Murray.

The couple reportedly started dating at the U.S. Open in September 2005.

Check out the photos of the two gorgeous trophy girls.

Jelena Ristic, Novak Djokovics girlfriend, watches the match between Djokovic and Jeremy Chardy of France at the Wimbledon tennis championships in London
Jelena Ristic, Novak Djokovic's girlfriend, watches the match between Djokovic and Jeremy Chardy of France at the Wimbledon tennis championships in London, June 21, 2011. Reuters
Ristic follows Djokovics match against Switzerlands Stanislas Wawrinka at the Swiss Indoors in Basel
Serbian tennis player Novak Djokovic's girlfriend Jelena Ristic follows Djokovic's match against Switzerland's Stanislas Wawrinka at the Swiss Indoors ATP tennis tournament in Basel, Nov. 6, 2009. Reuters
Tennis player Djokovic and girlfriend Ristic
Tennis player Djokovic and girlfriend Ristic REUTERS/Vincent Kessler
Novak Djokovic and his girlfriend Jelena Ristic
Serbia's tennis player Novak Djokovic and his girlfriend Jelena Ristic kiss as they arrive on the red carpet for the screening of the film "The Beaver" at the 64th Cannes Film Festival, May 17, 2011. REUTERS
Kim Sears, girlfriend of Murray of Britain, watches his quarter-final match against Nishikori of Japan at the Australian Open tennis tournament in Melbourne
Kim Sears, Andy Murray's girlfriend, watches his quarter-final match against Nishikori of Japan at the Australian Open tennis tournament in Melbourne. Reuters
British tennis player Murray and his girlfriend Sears arrive for Burberry fashion show, during London Fashion Week
British tennis player Murray and his girlfriend Sears arrive for Burberry fashion show, during London Fashion Week Reuters
Kim Sears, Andy Murrays girlfriend, watching a match.
Kim Sears, Andy Murray's girlfriend, watching a match. Reuters