I don’t think this is right. It was one of Thiero’s Kentucky teammates who said, “Adou Thiero, announcing his commitment to Pitt,” or something similar. But the context was clear that the teammate was just giving him a hard time and was messing around.
The follow-up says he did say Pitt and not just Pittsburgh but not sure if any truth to random twitter posters. Seems to be a UK fan fwiw.