I played baseball, hockey, football and basketball and there was one of those guys on every team. They would run their mouths and werent able to back them up.
I was in HS when during a baseball game the opposing player stepped on my hand as I dove back into 1st to prevent the pick off play, he stepped on my hand on purpose too and just stood on it. Long story short, when he said we are going to fight after the game my response was, "Ok, i'll talk to you after I reach home plate and we'll set something up". The kid was nothing but a hot head who couldnt back up his words.