Radio Rahim catches up with Abel Sanchez, trainer of WBA/IBO middleweight champion Gennady "GGG" Golovkin, to discuss the upcoming unification with WBC interim-middleweight champion Marco Antonio Rubio, which headlines an HBO televised doubleheader from the StubHub Center in Carson, California on Saturday night. The fight will have a featherweight co-feature, as Nonito Donaire battles undefeated Nicholas Walters for the undisputed WBA championship.