Only rivaled by Game 7 Rozier.
And Marcus Smart.
Come on. They both had terrible games, as did Brown, but not necessary dumb.
Okay, maybe Smart continually chucking up 3's could be deemed less than bright.
In answer to original question, not sure about dumbest player, but certainly dumbest play. Dirtiest player for sure.
Lue or Labron should have called timeout. That's all I have to say about that.