Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut

CONOR McGREGOR'S professional career has been as varied as his fighting weight.

33-year-old UFC legend has won titles in two divisions, scored knockouts across three, and is now a massive 13st 5lb.


Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut
Conor McGregor in 2013, before his UFC debut.
Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut
Conor McGregor is pictured with Joe Rogan, UFC commentator

The slim, tattooless Irishman who debuted in UFC is almost unrecognizable to McGregor, who plans to make his return next year.

After defeating Brazilian Jose Aldo (35), he entered the UFC at 145 lb featherweight. He became champion within two years.

He gained his first weight in 2016, a year after he had fought Nate Diaz at welterweight.

After losing the first fight, he won the rematch five month later. He then changed his weight and dropped to 155lb.

He defeated Eddie Alvarez (37), to win the lightweight title, becoming the featherweight champion and the first fighter to hold two UFC divisions simultaneously.

McGregor's stock was higher than ever and he crossed over to boxing to lose to Floyd Mayweather (44), in 2017.

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He weighed in at 153 lbs for the bout, just below the UFC's lightweight limit.

McGregor, who had been out of the Octagon for two years, would return to lightweight after losing to Khabib Nurmagomedov (33).

McGregor returned to the cage at welterweight and once again gained weight.

He defeated veteran Donald Cerrone (38), in 40 seconds, but failed to fight for an additional year.

He did it again, this time against Dustin Poirier (32), who he beat in 2014 at featherweight.


Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut
Conor McGregor at the welterweight, before his fight against Nate Diaz
Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut
Conor McGregor, a muscular figure, weighed in at lightweight

McGregor was eliminated in round two of the rematch.

The next three-fight series ended with a third bout. disastrous defeat for The Notorious, this time after a horror leg snap.

McGregor suffered a broken tibia just seconds before round one ended. He was then stopped by a doctor.

Since then, he has had surgery and has returned to training where he focuses on strength and conditioning.

John Kavanagh, McGregor's coach, joked that his star pupil was so large, he could even return at MIDDLEWEIGHT.

McGregor recently revealed that he weighed 13st 5lb. This is nearly two-and-a half stone more than his last fight.


Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut
Conor McGregor in training for his UFC return
Amazing transformation of Conor McGregor from a slim, KO-king fighter to a muscular, heavyweight-looking brawn since his UFC debut
Conor McGregor stated that he weighed in at 190lb