What happened: Prelims begin at 1 p.m. ET, followed by the main card at 5 p.m. ET on Paramount+.
Why it matters: The event will celebrate Mexican Independence Day with Mexican and Latin American talent. Martinez enters as UFC's No. 8-ranked bantamweight.
By the numbers: Martinez is 14-1 with 10 knockouts, six first-round finishes and a 10-fight winning streak. He lands 4.82 significant strikes per minute and owns 69% significant-strike defense.
What to watch: Tickets go on sale July 31.