Wladimir Klitschko
Usyk to Tyson: The 10 best heavyweight boxers of all time
Best British boxers of all time: Who are the greatest ever?
Usyk's reign as undisputed champion could only last two weeks
Becoming undisputed champ only a 'bonus' for Fury ahead of Usyk clash
From Fury to Eriksen: Sporting resurrections that shook the world