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

The Australian Open has witnessed tennis legends leave their mark, and Novak Djokovic reigns supreme with a record-breaking 10 finals appearances, all converted into victories. Roger Federer follows with seven finals,

MELBOURNE, Australia -- And then there was one: The Big Three is down to just Novak Djokovic, who stands alone from a golden generation of men’s tennis now that Rafael Nadal has joined Roger Federer in retirement.

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.

Novak Djokovic reflects on relationship with Federer and Nadal, calling their rivalries eternal in tennis history.

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

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.