You can clearly see in the video the old cac is copping pleas from smart right before he got shoved. Its clear he said something to piss Smart off. However, its still isn't right for Smart to have pushed the fan. He should have refused to play until the fan got thrown out though. That's what the soccer players do and that is what I would recommend these players do when these racist cacs call them out on the playing field.
I think he's talking shyt right up until Smart shoves him. It looks like he said "You're not my type"....probably trying to be funny after Smart said "fukk you".....