UFC 303 served as the anchor for International Fight Week. Conor McGregor was supposed to return against Michael Chandler, but pulled out injured. In the new main event, Alex Pereira defended his Light-Heavyweight title against Jiri Prochazka. Both fighters too the fight on short notice. The card was notable for its chaotic lead-up, including a last-minute co-main event where Diego Lopes defeated Dan Ige.
Canceled Fights
6 fights canceledConor McGregorCANCELEDMichael ChandlerReason: McGregor Broken Toe
Cody DurdenCANCELEDCarlos HernandezReason: Durden Withdrew
Jamahal HillCANCELEDKhalil Rountree Jr.Reason: Rountree Temporarily Suspended Du...
Jamahal HillCANCELEDCarlos UlbergReason: Hill Knee Injury
Brian OrtegaCANCELEDDiego LopesReason: Ortega Fell Ill on Fight Night
Carlos UlbergCANCELEDAnthony SmithReason: Ulberg Withdrew
Referees
1 fight
1 fight
JH
1 fight
JH
1 fight
JH
1 fight
1 fight
1 fight
1 fight
1 fight
1 fight
1 fight
1 fight
1 fight