Undefeated brawler Justin Jones (18-0-1, 11 KOs) faces Terrance Marbra (8-3, 6 KOs) in a six-round heavyweight bout while unbeaten bantamweight prospect David Perez (6-0, 3 KOs) battles Adan Ortiz (9-1, 8 KOs) in featured undercard bouts Friday, July 15 from Horseshoe Tunica Hotel & Casino in Tunica, Mississippi. The July