Conor McGregor became the first person to hold two belts simultaneously after he defeated lightweight champion Eddie Alvarez at UFC 205 in 2016. On January 23, McGregor returns to face Dustin Poirier in the main event of UFC 257.
Conor McGregor became the first person to hold two belts simultaneously after he defeated lightweight champion Eddie Alvarez at UFC 205 in 2016. On January 23, McGregor returns to face Dustin Poirier in the main event of UFC 257.