It looked like the British boxer would be fighting Tyson Fury, and with these two holding all of the heavyweight belts, it would have decided who was the Undisputed Heavyweight Champion of the World.
However, with Fury now having to face Deontay Wilder for the third time, the fights between the two Brits had to be postponed.
Despite many being frustrated by what has happened, Joshua vs Usyk still promises to be a great fight which many should be excited to watch.
Here is everything you need to know about the bout coming later this year:
UPDATE September 25th: Follow our live blog for regular updates below!
UPDATE September 24th: Anthony Joshua vs Oleksandr Usyk: How to watch, time, TV coverage, live stream & PPV price
Read more: How to watch, time, TV coverage, live stream & PPV price
UPDATE September 23rd: Tyson Fury wants Anthony Joshua to beat Oleksandr Usyk because he would 'much prefer to beat Joshua up'.
UPDATE September 22nd: How are the boxing world predicting the outcome of Anthony Joshua vs Oleksandr Usyk?
Anthony Joshua had made A LOT of money from fight purses in his last 11 bouts!
UPDATE September 21st: Dillian Whyte makes prediction ahead of Anthony Joshua vs Oleksandr Usyk
Wladimir Klitschko is still the proud owner of the biggest punch cleanly landed on Anthony Joshua!
UPDATE September 20th: Remembering when Anthony Joshua blew apart Charles Martin inside two rounds to take the IBF heavyweight world title in April 2016.
Oleksandr Usyk's punching power remembered when he knocked out Tony Bellew with beautiful combination!
Oleksandr Usyk has undergone a remarkable body transformation to get ready for Anthony Joshua!
UPDATE September 17th: Oleksandr Usyk's promoter Alexander Krassyuk insists that Anthony Joshua has never fought anyone like the Ukrainian.
Krassyuk also claims Usyk has 'nothing to lose' against Joshua.
What happened when Oleksandr Usyk sparred with Wladimir Klitschko?
UPDATE September 16th: Anthony Joshua's physique days before Oleksandr Usyk fight has surprised fans.
UPDATE September 8th: What is AJ's fight record?
UPDATE September 7th: The latest photos of AJ's physique are astonishing!
UPDATE August 25th: Matchroom Boxing has confirmed the full undercard for the event.
UPDATE August 18th: David Haye has provided a devastating prediction for the Joshua vs Usyk clash!
UPDATE August 11th: Fabio Wardley weighs in on the upcoming contest.
UPDATE August 10th: Joe Joyce makes his prediction for the upcoming fight.
UPDATE August 8th: Eddie Hearn believes that Usyk will never be a 'true' heavyweight, compared to Joshua.
UPDATE August 6th: Luke Campbell has made his bold prediction on the upcoming fight between Joshua and Usyk!
UPDATE August 4th: Eddie Hearn is not happy that boxing fans and media keep underplaying Joshua's resume.
UPDATE August 3rd: Tyson Fury and Bob Arum of Top Rank have reportedly already got plans for an alternative, should Joshua lose against Usyk.
UPDATE July 28th: Eddie Hearn has revealed in an interview with TalkSport that he wants Joshua to 'destroy' Usyk in their upcoming bout in September.
UPDATE July 27th: Footage of Usyk training has emerged and his ability on the speed bag has gone viral!
Elsewhere, Tony Bellew has given his prediction for the clash.
UPDATE July 26th: British heavyweight boxing brute Joe Joyce wants to face the winner of Anthony Joshua and Oleksandr Usyk, he told reporters.
UPDATE July 22nd: With the fight now being fully agreed and a date in place, Usyk has sent a warning message to Joshua.
UPDATE July 15th: Joe Joyce has backed Joshua to get the victory when he fights Usyk in September.
UPDATE July 2: Tony Bellew has warned AJ ahead of his upcoming fight against Usyk.
UPDATE June 24: Joshua's net worth has been revealed ahead of his fight against Usyk and the numbers are staggering!
UPDATE June 18: The fight will be available to watch on pay-per-view and we have all the latest details about it and where you can watch.
UPDATE June 17: The stats of both fighters have been compared as we look ahead to the extremely interesting contest between Joshua and Usyk.
When the two were ordered in May to fight, they had 10 days to sort out a date for the clash.
It has been confirmed that contracts between the two fighters are finalised and the bout will take place on Saturday 25th September 2021.
Although the arena has not yet been revealed, it seems like the fight will go ahead in England and will happen at the Tottenham Hotspur Stadium, which can hold up to 62,000 people.
After checking the odds on the fight, it is easy to see that Anthony Joshua is the clear favourite.
If you think Joshua will get the victory on the night, you can get odds of around 1/3. However, if you think Usyk will provide an upset as he continues his path in the heavyweight division, you can get 9/4 with different bookmakers
When it comes to method of victory, Joshua is the favourite to win by KO TKO or disqualification (4/5). Usyk on the other hand is 15/2.
A draw between the pair on the night is currently being presented at 15/2.
Many believe the round that Joshua is most likely to win the fight in is round 7 or 8, with the odds coming in at 12/1.
Tickets will be available to purchase for the fight on August 2nd for Matchroom members and August 3rd for the general public.
The two are both very experienced boxers, and here are their stats as we look ahead to September:
Wins by KO: 22
Wins by KO: 13
With only one loss between both of them, this fight is surely set to be a great one with a lot at stake.
This is another thing that hasn’t been sorted yet, but it is likely that Sky Sports Box Office will be showing this event on Pay-per-view. Keep an eye out here for more details.
Three fights have been announced for the undercard on the night. There are some huge names with a lot on the line fighting and they are:
- Okolie vs Prasovic (For the WBO World Cruiserweight Title)
- Hatton vs Dura
- Ousley vs Baysangurov (For the WBA Intercontinental Middleweight Title)
You can keep up to date with all of the latest boxing news and rumours right here at GiveMeSport.News Now - Sport News