Joshua knocks out Breazeale to defend IBF heavyweight title

Britain's World Heavyweight Champion Anthony Joshua, left, and challenger Dominic Breazeale, from the U.S. go head to head during a press conference in London Thursday June 23, 2016. Joshua will defend his title against Breazeale on Saturday in London. (Paul Harding/PA via AP) UNITED KINGDOM OUT NO SALES NO ARCHIVE

LONDON (AP) Anthony Joshua defended his IBF heavyweight title by knocking out Dominic Breazeale in the seventh round Saturday, ending his American challenger's unbeaten record.

It was only the second time in the 26-year-old Joshua's career than he has required more than three rounds to see off an opponent.

"I'm tired and I'm working hard," said Joshua, who improved his professional record to 17-0 since winning the Olympic title in 2012 in London. "Now I can recharge my batteries and start afresh again."