Tyson Fury feels that David Haye's lack of regular boxing action will be his downfall when the pair clash on September 28.
Haye has fought just twice since July 2011, when a defeat to Wladimir Klitschko was followed up with a win against Dereck Chisora last summer, and Fury thinks that Haye's stagnation will be the key factor.
"I see this fight going one way, my way because Haye is an inactive fighter," Fury told Sky Sports News.
"He's a wannabe [celebrity], he has had two fights in the last three years and he hasn't had the life of a boxer. Ring inactivity is one of the biggest failures of a boxer's career.
"That is why I feel I am going to win against him, because I have heart and determination."
Former WBC heavyweight Frank Bruno has backed Fury to beat Haye.
