Klitschko knocks out Brock in 7th (AP)

AP - Wladimir Klitschko seemed intent on defending his title with one hand the left. He jabbed and jabbed and occasionally hooked Calvin Brock. Then the IBF champion was cut by an inadvertent head butt and the blood trickling down the left side of his face told him it was time to throw the right. When that hand entered the fight it was time for Brock to leave it.