Radio Rahim catches WBC interim-middleweight champion Marco Antonio Rubio putting in work during media day with his trainer Robert Garcia. Rubio takes on WBA/IBO middleweight champion Gennady "GGG" Golovkin on Saturday night at the StubHub Center in Carson, California. The fight will be televised by HBO with a featherweight co-feature involving a WBA title battle between Nonito Donaire and Nicholas Walters.