Having not watched it live, I just saw video of Mayweather's "controversial" knockout of Victor Ortiz. I don't see what the hoopla is about. Let's run through it.
Ortiz blatantly head-butts Floyd during an exchange in the corner at the end of the fourth round -- literally bending his legs to get more propulsion as he smashes up with his forehead (the hardest part of the body, for those keeping track at home) into Floyd's chin. The ref sees it and calls for time so he can admonish Ortiz and deduct a point. He then puts them in separate corners and puts his hands together (the sign to resume action). Ortiz seems to realize what he did and is trying slap hands with Floyd again. Floyd does not really respond and there is this second where nothing is happening but Victor is standing there with his hands down as if there's something else to talk about. Floyd tags him left-right and the fight is over. I'm sorry, but there was nothing "controversial" -- if anything, Ortiz got what was coming to him.
