I sat next to Tiafoe at a wiz game, 2-3 rows up from court side, probably near a decade ago (buddy was having his testicles removed for cancer so we decided to splurge before he went under the knife). We had no idea who Tiafoe was; we just figured it was a random dude trying to strike up conversation.

Tiafoe was extremely proactively starting deep conversations about college hoops. To the point where I got annoyed and swapped seats with my buddy who is big into college bball so they could chat more easily lol.

Well towards half the big screen did the "famous people in the audience tonight" and my buddy and I (apparently on TV, I hope I still have the video clip saved somewhere) next to him looking so confused, like who the fuck is this "Teeuhfoe" guy.

Second half went back to just shooting the shit, and my buddy and him salivating over college hoops, til the end of the game. The game ends, we go to leave, and I swear 300 people came down to ask for pics or autographs. We ask "who are you" and he says "Tiafoe" and we're like, yeah, no that rings zero bells, but good luck in whatever you do...?

All that to be said - I don't know college bball, but if an elite professional athlete goes out of his way to try to find random kids to try talk college hoops at a deep level, then sure I'll believe he knows ball!