Robert Bobroczky, a 7'7" basketball player at SPIRE Institute in Ohio, is at the Pitt game today. It's pretty remarkable to see someone that big in person. He's got his own Wikipedia page and a bevy of videos on YouTube, due at least in part to having played with LaMelo Ball.
https://en.wikipedia.org/wiki/Robert_Bobroczky
https://en.wikipedia.org/wiki/Robert_Bobroczky