"Djokovic will end GOAT debate at US Open" - claims his coach Goran Ivanisevic

Novak Djokovic won his 20th Grand Slam at Wimbledon yesterday completing yet another milestone in a storied career.

The Serbian not only tied Rafeal Nadal and Roger Federer for most Grand Slam wins ever, but he also came very close to completing a calendar Grand Slam. Neither Federer nor Nadal ever did that and it has never been done in the Open Era. That will change in a few months according to his coach Goran Ivanisevic who said:

"For me, not because I’m here, before I was a member of the team, for me he was the best. I say he’s the only guy who can win four in a row in the same year. If he wins the US Open, I think it [the debate] is over. For me, Novak is the biggest ever."

Ivanisevic has no doubts whether Djokovic will win the US Open as he said:

“He’s writing history. He’s going to do it in the US Open. I strongly believe he’s going to do it, he’s going to win all four in one year. Then I think the story’s over. This one was huge. This is 20 to tie these three unbelievable guys. Now going to the US Open, first time in his career, winning three in a row in the same year, having a chance to win four. That would be unbelievable."