Anthony Joshua is reportedly set to rake in £100 million ($122.5m) for his rematch with Oleksandr Usyk in Jeddah on August 20.
The huge sum, which is said to be part of a 50-50 purse split between the heavyweight fighters, will be the largest payday Joshua has received in a career that has made the Londoner a multi-millionaire.
It is also around 20 times more than Joshua earned for his first world title shot, when he beat Charles Martin in April 2016.
How much money has Joshua landed from his previous fights? Which bout was the most lucrative? Here's a look at the knockout figures.
Anthony Joshua career earnings and purse history
Joshua's income became stratospheric when he signed a multi-fight deal with promoters Matchroom that saw him take a cut of pay-per-view takings from the outset of his first bout on Sky Box Office in the UK.
That was a British heavyweight title fight against future Tyson Fury opponent Dillian Whyte, and Joshua is thought to have received about £3m ($3.7m) for winning the grudge match.
His first major heavyweight title challenge, against Martin five months later, was worth £5m ($6.1m) to the rising star, and he earned similar sums for subsequent wins over Dominic Breazeale and Eric Molina.
Arguably the finest win of Joshua's career, against hall-of-famer Wladimir Klitschko in a classic at Wembley Stadium in April 2017, earned the former Olympic champion around £15m ($18.3m).
Fights with Alexander Povetkin and his first against Andy Ruiz Jr are thought to have been worth around £20m ($24.5m) to Joshua.
The second of those — a shock defeat in June 2019 — might have felt painful at the time but led to by far the most lucrative night of Joshua's career against the previously little-known Ruiz.
Few had expected Ruiz to pose a threat to Joshua, so when the American delivered a stunning seventh-round TKO, it led to a hugely anticipated rematch in Saudi Arabia that gave the challenger a £66m ($81m).
Joshua vs. Usyk 2: Another huge payday for AJ
When Joshua lost to Usyk on points in 2021, Total Sportal had him earning about £16.3m ($20m.)
That could be little more than a fifth of the vast amount Joshua will earn when he tries to reverse his points defeat to Usyk at the Tottenham Hotspur Stadium by beating the 35-year-old in Saudi Arabia.
Anthony Joshua's net worth: How much does Joshua make?
Joshua told GQ he has a goal of becoming a top earner in boxing and sports in general. "When I first started, the aim was to become a multi-millionaire," Joshua stated.
"But now there are ordinary people, grandmas and grandads, who are worth millions just because of property prices.
"So the new school of thought is that I need to be a billionaire. Being a millionaire is good but you have to set your sights higher."