Bust out your tennis whites because the 2016 US Open tennis tournament is officially underway.

Bust out your tennis whites because the 2016 US Open tennis tournament is officially underway.

The prestigious event is played on hard courts at the USTA Billie Jean King National Tennis Center in Queens, New York. The tournament takes place over a series of 16 courts, including the three main showcourts, Arthur Ashe Stadium, Louis Armstrong Stadium and Grandstand. 

This year marks the 136th edition of the US Open and the fourth and final Grand Slam event of the year. Novak Djokovic is the defending champion in the men's singles event. Flavia Pennetta is the current champion in the women's singles event, but she will not defend her title because she retired at the end of the 2015 season.

For the second year running, the US Open is scheduled across 14 days, rather than the 15-day schedule of 2013 and 2014. The women's singles semifinals have been scheduled for the Sept. 8 evening session, while men's singles semifinal matches will be played on Sept. 9. The men's doubles final will be played before the women's singles final on Saturday, Sept. 10, and the men's singles final will follow the women's doubles final on Sunday, Sept 11.

And the stakes are high! Besides the champion titles, the total prize-money compensation for the 2016 US Open will be $46.3 million. Of that total, a record $3.5 will go to both the men’s and women's singles champions. This makes the US Open the most lucrative and highest paying tennis Grand Slam in the world. 

But not everyone who tunes into the tournament is interested in the actual sport. Some fans watch the US Open just to get a glimpse of the gorgeous athletes themselves. So to celebrate the US Open this year, we are taking a look at the sexiest tennis pros active today. From Serena Williams and her rock hard body to Grigor Dimitrov and his GQ-esque sway, check out all the athletic eye-candy in the slide show above.