A recent Instagram post has highlighted British heavyweight Anthony Joshua’s physical transformation from his professional debut back in 2013 to the physique that the two-time world heavyweight champion possesses now.

The post compares AJ’s physique from his 2013 debut against Italian Emanuele Leo, to his weigh-in before defending his WBA, IBF, WBO and IBO world heavyweight titles against Joseph Parker in March 2018.

On his professional debut in 2013, the Olympic gold medalist weighed in at just over 16st 6lbs. Five years later, the defending unified heavyweight world champion weighed in at 17st 4lbs against New Zealander Joseph Parker, having dropped down from a monstrous 18st 2lb in his previous fight against Carlos Takam.

AJ has certainly packed on the muscle and enhanced his physique throughout his professional career, putting his 6 foot 6 powerful physique to use with an incredible knockout-to-win percentage of 91.67% in his 26 fights.

The Instagram post, which can be seen below, shows three physiques of Joshua throughout his career. The first image is from his debut in 2013, the second is before his fight with Eric Molina in 2016 and the third is before his 2018 fight with Parker.

His current physique, meanwhile, can be seen in his tweet below.

Talk about putting your body through the motions! That's not even the half of it as his body has changed so much between each and every fight he's ever had.

Joshua’s physique, despite arguably being his greatest asset, has been the centre of heavy criticism by many fans, and a certain Tyson Fury, who argue that the Brit’s muscular body restricts the heavyweight’s movement too much.

His most recent loss to former undisputed cruiserweight world champion Oleksandr Usyk last year only increased such accusations against Joshua’s ‘bodybuilder’ physique.

Read more: Anthony Joshua vs Oleksandr Usyk 2: Date, Card, UK Start Time, Ring Walks, Tickets, Live Stream, Odds and More

Joshua will be seeking to dispel such arguments that his impressive physique is a drawback in the boxing ring by defeating Ukrainian Usyk in Saudi Arabia this coming August, reclaiming his heavyweight titles and re-earning the respect of boxing fans who have recently doubted him.