NABF Bantamweight Champion Oscar “El Jaguar” Negrete (17-1, 7 KOs) will return in an eight-round bantamweight fight against Dhiul Olguin (13-9-3, 9 KOs) in the main event of the July 6 edition of LA FIGHT CLUB at the Belasco Theater in Downtown Los Angeles, Calif. and televised live on EstrellaTV’s Boxeo Estelar. Negrete, of Colombia, built an impressive