Anthony Joshua and Wladimir Klitschko will battle it out in front of 90,000 at Wembley on April 29 and it's the biggest heavyweight scrap in recent memory.
Joshua has a pristine record of 18 fights, 18 wins and 18 knockouts, but there is no denying that Klitschko is a huge step up in quality compared to his previous opponents.
AJ will put his IBF title on the line while competing for the vacant WBA (Super) and IBO heavyweight titles that Tyson Fury defeated Klitschko for.
The bookmakers believe the power of Joshua - who is 12 years Wladimir's junior - will be too much for his Ukrainian foe and he will come out on top on home soil.
However, many boxing fans believe AJ will not have dealt with power like Klitschko possesses and Dr. Steelhammer will have a decisive experience advantage over the IBF champ.
Wladimir's older brother Vitali retired as the WBC champion in 2012 and had a memorable battle with Lennox Lewis back in 2003 where the Brit came out on top.
However, Vitali, now a politician, believes his brother will knock AJ out at Wembley.
“Sometimes he loses concentration and that was the one reason he lost to Fury. If he focusses 100 per cent he will definitely beat Joshua.
“It is a great contest between two Olympic gold medallists, two world heavyweight champions of the same size and condition.
“It is older generation versus younger generation but I have learned that in boxing, as in politics and life, if the conditions are equal then experience is the key.
“We are both fighting for our country. Everyone in Kiev is excited and expecting a good result. We need all the positive messages we can get and I expect the KO by Wladimir.
“What we both know for sure is that if you don’t fight, you can’t win.”
It really is anyone's guess how this fight will go. AJ may cement himself as the most powerful puncher in boxing and make a big statement against a man who has stood atop of heavyweight boxing for so long.
Conversely, Klitschko may well manage the fight and control the tempo with his fabled jab. If he can dictate proceedings and stop Joshua getting up a head of steam, he can make the champ pay.
Which way do you think the fight will go? Let us know in the comments section.