Djokovic has a legit chance to win all 4 grand slams tournaments during 2021 calendar year which hasn’t been done in decades. This would clearly put him as the GOAT. He already has the better head to head vs Nadal and Federer. Only thing he is behind are total grand slam titles.
Federer 20
Nadal 20
Djokovic 18
Sampras 14
Djokovic's win over Nadal was a huge step for him becoming the GOAT, especially if he beats Tsitsipas in the final. Federer is likely done winning grand slams, but might have one last run in him at Wimbledon. Nadal's best chance by far is the French, and Djokovic just took one away. It wouldn't be surprising if he never wins another grand slam either. Djokovic is a year younger and can still win on every surface. He'll be a pretty big favorite at Wimbledon and the U.S. Open this year, and probably the favorite in 3 or 4 of the grand slams next year if he stays healthy.
I know there's not many tennis fans on here, but I hope people appreciate that we've gotten to watch the 3 best tennis players of all time over the last 17 years.
In my opinion, if Djokovic ends up with the most grand slams, he is the greatest of all time, and there shouldn't be much debate. He will have a winning record against Nadal and Federer, and will have at won every major at least twice if he wins Sunday.
It's a little depressing knowing those guys will be gone soon.