Lamont Roach, Jr. (17-0-1, 7 KOs) of Washington, D.C. delivered a spectacular sixth-round technical knockout victory over Deivis Julio Bassa (20-5, 12 KOs) of Monteria, Colombia to capture the vacant WBO International Super Featherweight Championship in the scheduled 10-round main event of the July 20 edition of Golden Boy Boxing on ESPN at the Oasis Arena in Cancun, Quintana Roo, Mexico.