Sunday 30 April 2017 00:03, UK
Anthony Joshua and Wladimir Klitschko will take centre stage at Wembley Stadium on Saturday night.
The duo go head-to-head in a battle between fighters at contrasting stages of their careers. The unbeaten Joshua's IBF title will be on the line, along with the vacant WBA 'super' belt.
Klitschko, though, has experience on his side. The Ukrainian has only lost three times as a pro and has admitted in the build-up he is "obsessed" with becoming a three-time champion of the world.
Ahead of the bout, which can be seen live on Sky Sports Box Office, have a look at some of the numbers involved in the biggest heavyweight contest staged in Britain.
Klitschko has fought on English soil just once before - and that was way back in 2000. He recorded a seventh-round TKO win over Monte Barrett in London on a card that was headlined by Lennox Lewis and Frans Botha.
The combined total of Olympic gold medals the protagonists in the main bout have between them. Both triumphed in the super-heavyweight division when amateurs, albeit obviously not at the same Games!
Joshua's age in years when Klitschko was victorious at the 1996 Olympics, held in Atlanta. The former followed suit in 2012, winning on home soil at the London Games.
The amount of times Klitschko's fights have gone the 12-round distance. Joshua, in contrast, has never fought beyond the seventh, as he's won all 18 of his pro bouts by stoppage.
The total number of world-title fights Klitschko has been involved in during his long and illustrious career. The Ukrainian has a 25-3 record in those bouts, suffering defeats to Corrie Sanders, Lamon Brewster and, most recently, Tyson Fury.
The number of bouts Johnathon Banks, Klitschko's trainer, fought as a pro before stepping the other side of the ropes. The American recently suggested he might not be finished as a fighter just yet, too.
Wladimir Klitschko's age. It's just a number though. 'Dr Steelhammer' made his pro debut in November 1996.
The height, in metres, Wembley's new roof rises to above the playing surface. In comparison, the old Twin Towers were 35 metres tall.
In terms of seconds, that's how long it took Joshua to triumph in his professional debut, against Italian Emanuele Leo. The bout took place at the O2 Arena in London, back in October 2013.
How many days it took to build the original Wembley stadium in 1922. Like Joshua's career, that's a seriously rapid rise from the bottom up.
The amount of rounds the Ukrainian has boxed as a professional. That's only 314 more than his next opponent, showing just how much this is a battle between the old and the new in the heavyweight ranks.
There are that many toilets inside Wembley, so no one should be caught short during Saturday night's proceedings.
The number of fans who can be transported through Wembley Park tube station per hour. It's also the approximate number of pints the venue can serve during the half-time interval of a football match!
Total attendance expected to be inside the venue at the fight, a post-war record for a boxing event in the United Kingdom. It's also being televised in the United States by both HBO and Showtime, showing the global appeal of the spectacle.
