Anthony Joshua is a former two-time unified heavyweight champion of the world who held WBA, IBF, WBO and IBO world titles before losing to Oleksandr Usyk in 2021.
However, the Watford man bounced back from the Madison Square Garden defeat, the first of his professional career, to put on a boxing clinic against the same opponent in Saudi Arabia at the end of 2019.
Joshua laboured to his first victory since 2020 with a unanimous points decision success over Jermaine Franklin at the O2 Arena in April 2023, then in August knocked out Robert Helenius in the seventh round.
Joshua also represented Great Britain at the 2012 Olympic Games in London and won gold in the super heavyweight category.
Avoiding jail to Olympic glory
AJ's next fight
The greatest hits: Ruiz, Klitschko and Whyte
The Klitschko win is arguably Joshua's best and most high profile, but he has enjoyed other thrilling wins in compiling a 25-3 (22) record after turning over in October 2013. "AJ" came through his first real test in 2015 as he knocked out arch-rival Dillian Whyte in the seventh round to win the famous Lonsdale title.
Ruiz Jr. vs Joshua 2
Defeats to Oleksandr Usyk
Anthony Joshua's reign as world heavyweight champion was ended in September 2021, and a 'Battle of Britain' against Tyson Fury left in tatters after Oleksandr Usyk claimed a stunning unanimous decision win at Tottenham Hotspur Stadium.
Usyk was giving up three inches in height and another one in reach, as well as nearly 20lbs in weight, but the former undisputed world cruiserweight champion's technical acumen came to the fore.
In August 2022, the pair fought again in Jeddah where Joshua fell to an agonising split decision defeat.
Anthony Joshua's weight
Joshua's weight has fluctuated in each fight but during his most recent bout against Ruiz in 2019, Joshua - under the guidance of Rob McCracken - hit the scales at his lightest weight since 2014 by coming in at 237-pounds (10 lighter than his first bout with Ruiz).
The decision proved to be a masterstroke with Joshua reclaiming three of the four major world titles. The Briton was also at his lightest weight for a world title fight.
McCracken hinted afterwards he would like his man to stay around this weight for his next title defence, with Joshua showing another dimension to his game with his jab and movement around the ring.
It proved to be right with Joshua weighing four pounds lighter prior to knocking Pulev out.
Anthony Joshua's net worth
In 2018 Joshua left American network Showtime to join DAZN alongside Hearn as a part of an eight-year, $1billion deal between Matchroom Sports and the OTT streaming service company.
According to Forbes, Joshua profited between $60-85million for his win over Ruiz in their rematch.
Outside of the ring, the Londoner has lucrative sponsorship deals with Hugo Boss, Under Armour, Beats and Lucozade Sport.
Joshua's Nigerian heritage comes from his mother Yeta Odusanya and father Robert Joshua, who lived in the West African country before moving to the English capital to provide better living conditions for their family. Joshua has three siblings in his two sisters Janet and Loretta and brother Jacob.
The heavyweight champion also has a son, JJ (Joseph Bayley Temiloluwa Prince Joshua) but is no longer in a relationship with the mother, Nicole Osbourne. It is believed she is a yoga instructor and a pole dancing teacher.