Conor McGregor almost looks like a completely different fighter from the man who first graced the UFC cage. The Irishman began life in the premier MMA promotion as a featherweight and struggled to make the 145lb limit.
By the time he took on Jose Aldo for the title in 2015, concerns were raised about what he was putting his body through. The extreme weight cut was clearly taking a toll and McGregor's stunning 13-second KO proved his last outing in the division.
He has since had two fights at lightweight and three at welterweight and returns to the 155lb division tonight against Dustin Poirier.
McGregor weighed in at the championship weight yesterday while Poirier settled for scaling 156lb, more than six years after their first fight ended
Read more on mirror.co.uk