If you didn't know it, Serena Williams has been working her butt off all week at the U.S. Open.
Alexis Ohanian = GHOAT.
And I don't know that much about tennis, but I'm pretty sure she's kicking ass.
"So, every day I step out on this court, I am so grateful that I have an opportunity to play this sport, you know? So, no matter what happens in any match — semis, finals — I just feel like I've already won."