Isiah Thomas took issue with LeBron James warming up shirtless and said "professionalism" in the NBA "has diminished so much.

LeBron James went full bare-back for his pre-game ... "But to walk out on the floor before the game with no shirt on and shoot... where are we at? What are we doing? Adam Silver, if you want ...

When James arrived at Crypto.com Arena to host the Timberwolves, he turned a lot of heads with his pregame routine. Not only ...