Thomas would go on to score 33 points on 10-of-18 shooting, adding six assists, five rebounds, and a steal.
Chicago stole a win on the road, 106-102.
But before the game took place, TNT cameras caught a touching moment between Celtics teammate Avery Bradley and Thomas.
Sitting on the bench together, Bradley consoled Thomas as emotion overcame him.
After the game, Bradley complimented Thomas and reiterated that it was hard to say much to console him, and that the best thing to do was just to be there for his teammate.