He shouldn't have been a showboating fool to begin with, then he wouldn't have to worry about it. Too many idiots on this team. Idiots, washed up vets and draft pick busts - that's what the Steelers are made of.
Where was he showboating? He was trying to jump over the dude so he could get into the end zone. The kicker went low. AB went high. On AB's way down, he stepped on his face.