'I wish this day would have never come': Nadal on his friend and rival Federer's retirement | VIDEO

Tennis Legend Roger Federer is retiring. When he said on Thursday that he will stop playing competitive tennis after this week's Laver Cup in London, he confirmed what tennis fans all across the world had long feared.

The 41-year-old Swiss, who owns 20 Grand Slam titles and is widely regarded as the greatest player to ever pick up a racket, hasn't competed since last year's Wimbledon."As many of you know, the past three years have presented me with challenges in the form of injuries and surgeries," Federer said in a post on Instagram.