Eddie Hearn has likened Friday night's Anthony Joshua vs. Francis Ngannou fight to King Kong vs. Godzilla.
The two heavyweights do battle live on DAZN PPV, in Saudi Arabia, hoping to earn a shot at a world title fight in the near future.
The undisputed world heavyweight title fight between Tyson Fury and Oleksandr Usyk is set for 18 May, also on DAZN PPV, and the hope is the winner of the two fights will meet later this year.
Speaking to BBC Sport ahead of Joshua vs. Ngannou, promoter Hearn said: "It's King Kong against Godzilla, it's two giants colliding and anything could happen.
"When you see the size of Francis Ngannou it is a worry, you have to really take this guy out.
"You can't hurt him and expect him to whimper in the corner, you have to put a dent in him because he can really punch.
"On paper AJ is the better boxer, more experienced, better jab and has better footwork.
"But the jeopardy and risk never evaporates in the heavyweight game, that's why it is so exciting to watch."
Live on DAZN PPV: Anthony Joshua vs. Francis Ngannou on March 8. Click here for details and how to purchase.