Heavyweights Anthony Joshua and Wladimir Klitschko are ready to rumble in Saturday's bout in front of 90,000 people at Wembley in London.
Joshua, 27, who is undefeated in 18 professional fights, is not nervous over the gravity of the contest against his 41-year-old opponent.
The Briton is putting his International Boxing Federation title on the line and hoping to secure the vacant WBA, IBO belts. The men will be paid 12 million euros each.
At the final press conference, Klitschko intensified his mind games before Saturday’s fight with Joshua by revealing he has already recorded his prediction of the outcome.
The challenger, 41, brandished a memory stick which he said contained a video of that prediction, and said it would be sealed in the robe he will wear into the ring at Wembley Stadium.
Joshua said the statements by Klitschko took him back to the contest with Kevin Johnson, who vowed to write a book on beating the 2012 Olympic gold medal winner. He never got the chance, because Joshua easily put him away in two rounds.
"This fight could be easy - I could go in there and catch Wladimir and 'boom!'" he told Sky Sports News HQ. "He could suddenly be wobbling and then I take him out. Then, the next fight could be the one that people think is going to be easy and I get caught. You're going to find out new things about me throughout my career."
"[Klitschko's comments] took me back to the time when I fought Johnson. He was at the press conference, and said 'I'm going to have a book, man, explaining how to beat Anthony Joshua.' It obviously wasn't ever released because he got knocked out! But it took me back to the strategy of how people can try and get into your head. Luckily, I've been there before. I can go to the trenches."
