Manny Pacquiao came out in round four of his bout with Brandon Rios looking to use his speed to avoid getting hit with more of Rios' power.
Rios did start to try to dirty it up with some scrapping in the clinch but he had a lot of trouble hitting Manny, who was ducking under many of the big rights of Rios.
Rios was reduced for much of the round to covering up while Manny bombed with power shots and then circled away without taking much. This round stole some of Rios' momentum he'd been building in round three.
Round: 10-9 Pacquiao
Fight: 40-36 Pacquiao