Olympics 2012: Roddick to take on Djokovic

World No.2 Novak Djokovic of Serbia will meet former US Open champion Andy Roddick in the second round of the Olympic tennis tournament after the American beat Slovakia’s Martin Klizan Monday.

Roddick forced his way past Klizan 7-5, 6-4 thanks to late breaks in both sets as the Slovak, ranked 52nd in the world, put up stiff resistance.

The Olympic tennis is being played at Wimbledon, where Djokovic won last year and Roddick has reached the final three times, most recently in 2009.

Croatia’s 13th seed Marin Cilic will face 2002 Wimbledon champion Lleyton Hewitt in the second round after beating Austria’s Jurgen Melzer 7-6(5), 6-2.

"It was not as comfortable as I thought it was going to be," Cilic said.