Serena's coach delivers huge GOAT call in Big Three debate

Serena Williams’ coach Patrick Mouratoglou has labelled Novak Djokovic as the best tennis player of the Big Three when they are at their peak.

Roger Federer (20), Rafael Nadal (19), and Djokovic (16) have created history gathering the most Grand Slams ever and incredibly all in the same era.

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The greatest of all-time debate has for some time been the talking point every time another one of these legends claim another Grand Slam.

This year, Nadal moved the closest he has ever come to Federer’s total.

But Mouratoglou, coach of arguably the greatest female player of all-time Williams, offered his take on the battle.

Mouratoglou heaped praise on the 38-year-old Swiss maestro claiming he was the “perfect” tennis player.

But he had another player in mind when pressed on who was the best of the Big Three at their peak.

“When the three play their best tennis, Novak wins most of the time,” he said, according to TennisWorld.

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“If Novak were injury-free during the two years where he disappeared from tennis, he would probably be the player holding most Grand Slam titles. I can imagine one day he will be the most successful player ever.”

Both Djokovic and Nadal claimed two Grand Slams each this year.

Nadal narrowly finished end-of-year World No.1 after Djokovic crashed out of the ATP Finals in the group stage.