WBO, IBF, IBO, WBA heavyweight champion Oleksandr Usyk is fully confident in his ability to defeat WBC king Tyson Fury, when the two unbeaten beltholders collide on February 17 in Saudi Arabia.

Usyk has faith that his skills will overcome Fury's advantage in size. 

"Firstly, it's not 'if' I win but 'when' I win," Usyk said to Sky Sports. "When I go to sleep I imagine myself boxing, then my hand raised high. I simply believe that I can win."

Fury has been verbally blasting Usyk in the last few months, but the Ukrainian boxer believes the mind games have backfired on the 'Gypsy King.'

"I got into his head and now instead of me, he thinks about a rabbit. Keep thinking, brother," Usyk said. "I have listened to Eminem for many years, his mum used to call him a white rabbit. I don't know, I like this rapper. Tony Bellew once said that I am a beast in boxing, I said: 'Not really, I'm just a white rabbit.'

"In my childhood I was asked who I want to be when I grow up, I came home and asked his advice - who should I become when I grow up? He said: 'You must become a good person.' First of all - you need to become a good and well-behaved person. From there, you can achieve everything else."

Usyk is coming back from a knockout victory over mandatory challenger Daniel Dubois, which took place in Poland back in August.

Fury took part in a non-title crossover boxing match back in October, in Saudi Arabia, against former UFC champion Francis Ngannou. While the fight was widely viewed as a complete mismatch on paper, Ngannou shocked the oddsmakers when he dropped Fury in the third and gave him issues throughout their ten round bout. Fury was able to secure a close split decision win.