London, July 1 : Swiss tennis star Stan Wawrinka and American woman footballer Ali Krieger went nude for the 2015 edition of ESPN The Magazine's The Body Issue.

Two-time Major winner Wawrinka, who beat Joao Sousa in straight sets in his first round match at Wimbledon on Monday, and Krieger bared all for the 2015 edition of the publication which will hit the newsstands on July 10, dailymail reported on Wednesday.

Defender Kreiger, 30, who is currently representing the US at the FIFA World Cup in Canada, posed naked with a golden ball at her feet for the annual edition of the magazine.

Wawrinka joins tennis stars Venus Williams and Tomas Berdych on the list of sportspersons to feature in The Body Issue and is pictured playing tennis strokes.

The 30-year-old Wawrinka won his second Grand Slam at French Open in June after winning the Australian Open in 2014, but he concedes he is still a long way behind Novak Djokovic, Rafael Nadal and Roger Federer.

"They are better in everything. They are just better tennis players than all the rest. Those three guys are just too good, Andy Murray also," Wawrinka was quoted as saying by ESPN.

"Look at how many Slams they won, especially Roger, Rafa and Novak. They are huge champions. They are so consistent. I need to work on my consistency. That's something I really want to improve," he said.

"I don't compare myself to them. That's not my goal. My goal is to give my best every day, continue to play well and live wonderful moments like I did in Paris," the Swiss star said.

Krieger, whose team will meet either Japan or England in the World Cup final on Sunday night, spent five years playing in Frankfurt and considers Germany a home away from home.

"I consider Germany my second home. The tattoo on the side of my body is from the first German book I ever read, The Little Prince," she said.