Anthony Joshua’s first big test. Anthony Joshua vs Wladimir Klitschko was a professional boxing match contested on 29 April 2017 at Wembley Stadium in London, with Joshua’s IBF and the vacant WBA (Super) and IBO heavyweight titles on the line. Joshua won the match via technical knockout (TKO) in the eleventh round with 90,000 fans in attendance. Klitschko announced his retirement from boxing a few months after the fight. The bout was named Fight of the Year by The Ring and the Boxing Writers Ass