While Roger Federer and Novak Djokovic have a stunning wealth behind them, they can't hold a candle to an ex-tennis star who's now a billionaire.

Novak Djokovic is opening up about his relationship with fellow tennis stars Roger Federer and Rafael Nadal, admitting that it's often strained.

Novak Djokovic added yet another record to his lengthy list, breaking a tie with Roger Federer for the most Grand Slam matches played in tennis history by reaching 430 on Wednesday at the Australian Open in what was a tougher-than-expected second-round victory.

While Novak Djokovic and Roger Federer are the two wealthiest tennis players in history, there is one former pro whose net worth dwarfs that of the legendary duo

Novak Djokovic now holds another Grand Slam record as he officially surpassed fellow tennis legend Roger Federer on Wednesday when he played the 430th major match in his career. After Djokovic's first-round match at the Australian Open on Monday,