John Collins showed up to the post game press conference of the Hawks' Game 7 win with a t-shirt of him posterizing Joel Embiid in Game 6.
Here is the dunk, which arguably could have been an offensive foul on Collins for hooking Embiid with his left arm. Instead, a foul was called on Embiid and Collins got the basket and a free-throw.
Embiid and Collins actually got into a tussle after the play, with both getting technical fouls. Embiid was fined $35,000 for igniting the incident.