Gennady Golovkin defended his WBC and IBF middleweight titles with a fifth-round stoppage at London’s O2 Arena on Saturday, and immediately called out Briton’s WBO champion Billy Joe Saunders for a unification bout.
Kell Brook’s corner throw in the towel as middleweight king Gennady Golovkin reigns supreme at London’s O2 Arena — in pictures
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