Roger Federer and Novak Djokovic are two of the greatest tennis players in history. But who is the best? A former World No. 7 player and Olympic gold medalist has the answer.

Former Australian and French Open winner Jim Courier has revealed his personal top three players of all time - with Roger Federer having to settle for third.

Novak Djokovic surpasses Roger Federer’s record for most Grand Slam matches played, after a second-round victory at the Australia Open.

Novak Djokovic reacted to surpassing Roger Federer's Grand Slam record during his second-round win in Australian Open.

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.

MELBOURNE, Australia — 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.

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 has broken another monumental record, becoming the player with the most Grand Slam matches played in tennis history. On his journey to the third round of the Australian Open, Djokovic surpassed Roger Federer’s previous record with 430 matches played.

Novak Djokovic said he was “blessed” to set another record after he overtook Roger Federer ’s tally to win his 430th Grand Slam singles match at the Australian Open. And the 10-time champion celebrated by blowing a kiss to his new coach Andy Murray.

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

After advancing to the third round of the Australian Open, Novak Djokovic admitted that he was surprised to break Roger Federer's Grand Slam match record.