"It didn't dawn on me until right when I walked on set that I would have to be without clothes," Williams admitted to the magazine of her nude shoot. "If I would have thought about it before, there may have been a little less of a chance."

As for Berdych's hot shot, the 28-year-old models his assets, namely his bare butt and sexy Speedo tan lines, while holding a tennis racket under his arm. The hunky sports star flashes a swoon-worthy, bold-faced pose that highlights his buff biceps, rock-hard legs, abs and other muscles.

Yum!

ESPN will releases photos of more naked sports stars from the Body Issue on Wednesday. This year's issue hits stands July 11.