
David Haye believes the smoothest and possibly only route to an undisputed world heavyweight title fight is by Daniel Dubois pulling off a major upset against Oleksandr Usyk this weekend.
Usyk, the WBA, IBF and WBO champion, will take on mandatory challenger Dubois in Wroclaw, Poland, on Saturday after negotiations for a showdown against WBC belt holder Tyson Fury broke down earlier this year.