U.S. tennis legend Andy Roddick has weighed in on the greatest player from the "Big Three" — Novak Djokovic, Roger Federer, and Rafael Nadal.

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, he tied Federer for the record.

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 has reached the third round of this year's Australian Open with his bid to become the first player to win 25 Grand Slam titles remaining on track

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.

The tennis world saw the making of yet another history-making moment when Novak Djokovic overcame another record set by Roger Federer. The Serbian has now played the most Grand Slam singles matches. The Swiss held a record of playing 429 major singles matches up to the start of this year's Australian Open before Djokovic finally