Bellew needs biggest win to upset Usyk
MANCHESTER: Tony Bellew must deliver one of the biggest wins ever by a British fighter if he is to humble Oleksandr Usyk, says media.
Saturday's Manchester Arena bout will present Bellew with the chance to become the first Briton to hold four world titles in a weight division.
Ukraine's Usyk - IBF, WBO, WBA and WBC cruiserweight champion - is unbeaten.
"I think it will be one of the all-time best displays by a Briton home or abroad if Bellew wins," said Costello.
"In Usyk, we are talking here about one of the best. If he is allowed to get into a rhythm, he does so very quickly within two or three rounds and becomes just about untouchable."
The bout - which will be broadcast on BBC Radio 5 live - will see all four world titles on the line for just the sixth time in men's boxing history.
In his own words Bellew, 35, is ready to "shock the world and then do the greatest disappearing act."