HustleBoss.com steps inside of Abel Sanchez’s Summit Gym in Big Bear, California as WBA middleweight champion Gennady Golovkin (26-0, 23 KO’s) puts in work ahead of his HBO-televised clash with former world title challenger Matthew Macklin (29-4, 20 KO’s).

Golovkin meets Macklin on June 29th at the MGM Grand inside of the Foxwoods Resort in Mashantucket, Connecticut.

All photos courtesy of Chris Robinson (www.HustleBoss.com)

Chris Robinson can be reached at Trimond@aol.com