Now that tennis legend Roger Federer is reportedly a billionaire, here's how his net worth compares to the other members of the Big Three, aka Novak Djokovic and Rafael

In fact, Federer became the second tennis player after Tiriac to join the club. Despite bidding adieu to the game three years before, Federer's net worth was boosted by his minority stake in Swiss shoe and apparel brand On.

Tennis icon Roger Federer has become the seventh billionaire athlete in history, according to estimates published by Forbes on Friday.