Tyronn Lue has no recollection of Iman Shumpert throwing a towel on his left shoulder during Wednesday's game.

Lue's facial expression immediately after was difficult to decipher as Shumpert walked away to take the court.

"I didn't even notice it," Lue told cleveland.com. "Somebody later brought it to my attention. It's not something I'm concerned with. Him and me are cool. When did it happen?"

The Cleveland Cavaliers blew a 20-point lead to the Houston Rockets in the game.