UFC 257: Conor McGregor vs. Dustin Poirier

In this handout image provided by the UFC, (L-R) Conor McGregor of Ireland punches Dustin Poirier in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, Dustin Poirier reacts after his knockout victory over Conor McGregor of Ireland in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Dustin Poirier punches Conor McGregor of Ireland in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Dustin Poirier punches Conor McGregor of Ireland in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Dustin Poirier punches Conor McGregor of Ireland in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (L-R) Dan Hooker of New Zealand punches Michael Chandler in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Michael Chandler punches Dan Hooker of New Zealand in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Jessica Eye punches Joanne Calderwood of Scotland in a flyweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Joanne Calderwood of Scotland punches Jessica Eye in a flyweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Andrew Sanchez punches Makhmud Muradov of Uzbekistan in a middleweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (L-R) Makhmud Muradov of Uzbekistan punches Andrew Sanchez in a middleweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Amanda Ribas of Brazil punches Marina Rodriguez of Brazil in a strawweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (L-R) Marina Rodriguez of Brazil punches Amanda Ribas of Brazil in a strawweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

Arman Tsarukyan, right, of Armenia punches Matt Frevola in a lightweight fight during UFC 257 inside Etihad Arena on UFC Fight Island on Saturday in Abu Dhabi.

In this handout image provided by the UFC, (R-L) Matt Frevola kicks Arman Tsarukyan of Armenia in a lightweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (L-R) Brad Tavares punches Antonio Carlos Junior of Brazil in a middleweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Antonio Carlos Junior of Brazil punches Brad Tavares in a middleweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Julianna Pena punches Sara McMann in a bantamweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Sara McMann punches Julianna Pena in a bantamweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Khalil Rountree kicks Marcin Prachnio of Poland in a light heavyweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (L-R) Marcin Prachnio of Poland punches Khalil Rountree in a light heavyweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Zhalgas Zhumagulov of Kazakhstan punches Amir Albazi of Iraq in a flyweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Amir Albazi of Iraq punches Zhalgas Zhumagulov of Kazakhstan in a flyweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (L-R) Movsar Evloev of Russia punches Nik Lentz in a 150-pound catchweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.

In this handout image provided by the UFC, (R-L) Nik Lentz punches Movsar Evloev of Russia in a 150-pound catchweight fight during the UFC 257 event inside Etihad Arena on UFC Fight Island on January 23, 2021 in Abu Dhabi, United Arab Emirates.