Both parties have 30 days to agree terms before purse bid

Mandatory challenger Parker is on a five-fight win streak

Oleksandr Usyk has been ordered by the World Boxing Organisation to defend his heavyweight world title against Joseph Parker. Saturday’s spectacular knockout of Daniel Dubois in front of more than 80,000 people at Wembley ensured the Ukrainian was crowned undisputed world champion once again.

Both parties have 30 days to agree terms or the WBO will proceed to a purse bid. Parker, the former world champion, is on a five-fight winning streak, including impressive wins over the former WBC world champion Deontay Wilder, Martin Bakole and Zhilei Zhang.

Parker’s impressive performances had earned him his first chance to win a world title in seven years against Dubois in February. However, Dubois withdrew because of an infection two days before the bout. Instead, Parker fought Bakole, winning with a second-round KO.