By David "Los Gatos" Rosenberg

MGM Grand, Las Vegas - Floyd Mayweather Jr. (42-0, 26KOs) knocked out Victor Ortiz (29-3, 22KOs) in the fourth round to capture the WBC welterweight title. The ending had some controversy. In the fourth round, Ortiz had Mayweather backed up against the ropes and was throwing punches, but then used he intentionally fouled Mayweather with his head. Ortiz lost a point but then went over to hug Mayweather and touch gloves, when Ortiz backed away from the hug and looked for a split second at referee Joe Cortez, Mayweather unleashed two big shots to knock him out.

Ortiz claims Cortez called for a break, so he had his guard down and then Mayweather fouled him with two punches.

"I fouled Floyd, I apologized in the ring and apologized after the fight as well. I thought the ref called a break and I am pretty sure he did and then I was like 'whoa, whoa,' and then I woke up after. I started it, but I got my point taken away. I was letting him come in because he wasn't hurting me at all. He doesn't have a stiff right. I was looking at Joe. I thought he said 'break,' and BOOM - I guess it was time for bed. In this case he connected with what I believe was a foul," Ortiz said.