Radio Rahim catches WBA/IBO middleweight champion Gennady "GGG" Golovkin putting in work during media day with his trainer Abel Sanchez. Golovkin takes on WBC interim-middleweight champion Marco Antonio Rubio 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.