Tennis is a white man’s sport.

When cartoonist Mark Knight tweeted an image of his cartoon depicting Serena Williams’ disagreement with Umpire Carlos Ramos in the Finals of the U.S. Open, he responded to the public criticisms of racism by asserting that “it had nothing to do with gender or race,” according to Melbourne Australia’s Herald Sun.

Game recognizes game: That’s the message we’re getting from 20-year-old tennis phenom Naomi Osaka, who had only one thing to say to her upcoming US Open Finals opponent, Serena Williams, who is undoubtedly also one of her idols:

Although I am loath to compare the incomparable Serena Williams to any animal besides perhaps a black panther with emerald eyes, I may allow for the G.O.A.T. acronym, because damn, she can’t stop, won’t stop, showing and proving that she’s worthy of the title: greatest of all time.

Serena Williams showed once again why she is the greatest thing besides her sister Venus to happen to the sport of tennis when she won her quarterfinal match against Karolina Pliskova in the U.S. Open Tuesday night at the Arthur Ashe Stadium in Flushing Meadows, NY.