#2 Conor McGregor
Conor McGregor made a name for himself in the 145-pound division in the UFC as he steamrolled the Featherweight division en route to a devastating 13 second knockout of Jose Aldo for the UFC Featherweight Title.
Then, he moved up to 170-pounds for his two matches against Nate Diaz. The first one was a shock defeat, which he quickly avenged with a brutal decision victory in the rematch at UFC 202.
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And, finally, The Notorious One moved to the 155-pound division – which many consider as his ideal weight class – where he put Eddie Alvarez to bed and pick up the UFC Lightweight Title, becoming the first person in UFC history to simultaneously hold titles in two different weight classes.
You can see the changes in McGregor’s body here:
Conor McGregor official weigh in comparisons
Top - 154.4lbs for #UFC205
Bottom Left - 145lbs for UFC 194
Bottom Right - 168lbs for UFC 196 pic.twitter.com/AslaT2tNX5
— Chamatkar Sandhu (@SandhuMMA) November 11, 2016
McGregor has proven to be a master at transforming his body as the situation requires.