Garcia floors Khan three times
Danny Garcia stopped Amir Khan in the fourth round to win another super-lightweight title in Las Vegas on Saturday night.
The American knocked the Briton down with a left hook in the third round, but the 2004 Olympic Games silver medallist beat the count.
At the start of the fourth Garcia hit Khan with power punches, knocking him down twice. Khan got back to his feet each time, but the referee ended the bout after 2 minutes and 28 seconds of the round.
Garcia, who already had the WBC title, added Khan's WBA belt and now has a record of 24 wins and no losses.
He kept his record intact by surviving the early rounds before using a perfectly-timed left hook late in the third round that caught Khan flush on the ear.
Khan, of Great Britain, suffered only the third loss of his career. He never recovered fully from the third-round knockdown.
He got up but went down twice more in the fourth round when the bout turned into a slugfest with the fighters trading heavy shots in the centre of the ring.
REUTERS reports that Khan was “a little surprised” that the referee stopped the fight.
"I thought he was going to let us continue. My mind was clear, and I thought my legs were okay.
"But it wasn't my night. I respect Danny. He was countering very well. I got a little complacent and he took advantage and caught me."
Garcia said he had felt the Briton had underestimated him. "We knew he was going to come out fast because he thought I had no power," said Garcia.
"But I waited and stepped up and used the speed and power I have. And it worked."
In a super-middleweight bout Fernando Guerro (23-1; 18) outpointed Jose Medina (17-10-1; 7) over ten rounds and lightweight Jamie Kavanagh (10-0-1; 5) beat Paul Velarde (3-1-3) on points over eight.