Wladimir Klitschko has retired from boxing, ending Anthony Joshua’s hopes of a Las Vegas rematch.
The Ukrainian, 41, was knocked out in the 11th round by current champion Joshua at Wembley Stadium in April.
Joshua, 27, had hoped Klitschko would sign his rematch clause for a proposed fight in Las Vegas on 11 November.
“I have achieved everything I dreamed of, and now I want to start my second career after sports,” said Klitschko.
The two-time former champion, who held the unified title from 2006-2015 before losing to Joshua’s fellow Briton Tyson Fury, ends his career with a record of 64 wins and five defeats.
“I would have never imagined that I would have such a long and incredibly successful boxing career,” he added.

Wladimir Klitschko has retired from boxing and declined a rematch with Anthony Joshua (Image: PA