UFC 266: Volkanovski vs. Ortega
| Sport: | MMA |
| Promotion: | UFC |
| Date: | Sept. 25, 2021 |
| Venue: | T-Mobile Arena |
| City: | Paradise, Nevada |
| Broadcast: | Pay-Per-View |
Main Event
Featherweight Alexander Volkanovski vs. Brian Ortega
Main Card
Middleweight Nick Diaz vs. Robbie Lawler