Who: WBO featherweight world champion Emanuel “Vaquero” Navarrete, undefeated welterweight contender/San Diego native Giovani Santillan, and unbeaten middleweight prospect Nico Ali Walsh.

What: Navarrete, Santillan and Ali Walsh will conduct a media workout 12 days before they take center stage Saturday, Aug. 20, at Pechanga Arena San Diego.

Navarrete [35-1, 29 KOs] will defend his world title against his Mexican countryman, Eduardo Baez [21-2-2, 7 KOs]. In the co-feature, Santillan [29-0, 17 KOs] risks his perfect against Julio Luna [19-0-2, 10 KOs].

Ali Walsh, the grandson of Muhammad Ali, opens the ESPN telecast in a rematch versus Reyes Sanchez [7-2, 3 KOs], the only man to take him the distance in his young career. Nearly 50 years ago, Ali fought at Pechanga Arena San Diego [then known as San Diego Sports Arena], suffering a broken jaw en route to a shocking decision defeat to Ken Norton.

Where: The BXING Club East Village
491 15th Street, San Diego