Gennady Golovkin prepares for challenge of Matthew Macklin

By Ian Aldous: On June 29th, Gennady Golovkin (26-0) puts his WBA and IBO world middleweight championships on the line against tough, perennial contender, Matthew Macklin (29-4) from the MGM Grand at Foxwoods Resort in Mashantucket, Connecticut. The HBO televised fight will see Golovkin face a legitimate challenge in the form of two-time world title