It was the spur of the moment. It was obvious he was excited that he won and he said that in disbelief. Plus hes never played Federer. LOL GS champions such as Sampras and Mac and Laver think Fed is GOAT. Zebellos is a nobody. Nadal is the clay GOAT but thats where it ends. Nadal has taken too many breaks and lacks the consistency of ever being called GOAT.
"King slayer is a mere executioner, and is not as great as the one who he slayed."- Chico