The Ukrainian and the Briton will meet on May 18 in the main event of a massive evening of boxing in Riyadh, Saudi Arabia.
"In this fight boxers have equal chances to win. Initially I thought Fury was too big for Usik and he would destroy him. Now I think it's actually a much more competitive fight. A fight that could end any way you want. And the bookmaker odds prove it. There is no favorite in this fight," Arum said in an interview with YouTube channel Jai McAllister.