- Due to recommendation from the UFC medical team, Khamzat Chimaev was advised to stop cutting weight due to weight management issues. Chimaev will move up to a catchweight bout of 180 lbs and face Kevin Holland in the new five-round co-main event.
- The new main event will feature two all-action UFC favorites as Nate Diaz will face Tony Ferguson in a five-round welterweight bout.
- For the third fight on the main card, Li Jingliang will now face Daniel Rodriguez in a 180-lb. catchweight bout.
- The women’s bantamweight bout between Irene Aldana and Macy Chiasson will now be contested at a catchweight of 140 lbs.
- Featherweight Hakeem Dawodu weighed in at 149.5 lbs and will be fined 30% of his purse in his bout against Julian Erosa.
- Heavyweight Chris Barnett weighed in at 267.5 lbs and will be fined 20% of his purse in his bout against Jake Collier.
- Due to a change in the main event, refunds will be available at point of sale.
UFC 279: Diaz vs. Ferguson will take place on Saturday, September 10th at T-Mobile Arena in Las Vegas, Nevada.
