The end got here at 2 minutes, 32 seconds.
The combat, a non-title bout contested at 155 kilos, occurred inside Etihad Area on Yas Island in Abu Dhabi, United Arab Emirates.
It marked the second assembly between McGregor (22-5), a former undisputed champion at light-weight, and Poirier (27-6), a former interim light-weight champion. The 2 met as featherweights in 2014, when McGregor knocked out Poirier simply 1:46 into the combat.
Poirier was coming off a unanimous choice win over Dan Hooker in June.
McGregor fought for the primary time since January 2020, when he knocked out Donald Cerrone within the first spherical.