Benson Henderson will defend his lightweight title against Gilbert Melendez on April 20 when Ultimate Fighting Championship returns to HP Pavilion.
Henderson is 6-0 in the UFC, including title defenses over Nate Diaz and Frankie Edgar. San Francisco's Melendez is the last man to hold the Strikeforce 155-pound title.
Also on the card are former UFC heavyweight champion Frank Mir vs. San Jose's Daniel Cormier; and Stockton's Diaz vs. San Jose's Josh Thomson.
WBC welterweight champion Floyd Mayweather Jr. caused a stir late Tuesday when he tweeted he'd likely face IBF champion Devon Alexander on May 4 in Las Vegas. While Mayweather's opponent hasn't been formally announced, it had been speculated that Robert Guerrero of Gilroy was the leading candidate.
The San Francisco Bulls returned from a five-day break to host the Las Vegas Wranglers at the Cow Palace on Wednesday night.