The little details that led to Sean O'Malley's title winning knockout

It was easy to forget the first five minutes of Sean O'Malley's championship victory. After all, not much damage was scored in the round. 

But five minutes of feinting and moving was all O'Malley needed to gather the information he needed to put Sterling's lights out early into the second round. 

He frustrated Sterling with his movement and then capitalized on the openings Sterling left when shifting forward into southpaw to close the distance.