Oleksandr Usyk lands the shot that knocks out Tony Bellew in their cruiserweight world title fight in Manchester. Getty Images
Oleksandr Usyk lands the shot that knocks out Tony Bellew in their cruiserweight world title fight in Manchester. Getty Images
WATCH: Oleksandr Usyk sends Tony Bellew into retirement with eighth round stoppage
Ukraine's undisputed cruiserweight world champion sets his sights on heavyweight superstar Anthony Johsua
