WBC/WBA/IBF middleweight world champion Gennady Golovkin (36-0, 33 KOs) retained his titles with a fifth round TKO over IBF welterweight champion Kell Brook (36-1, 25 KOs) on Saturday night at the O2 Arena in London. Golovkin who pulled Kell Brook up two division to fight him hurt him early in the

In a truly bizarre story that seems more Amelia Earhart than professional sports, Randy Caballero has lost his IBF bantamweight title on the scales by coming in a whooping 5 and half pounds over the bantamweight limit and a pound and half over in the next divisions weight limit. Lee

Pay-Per-View Telecast Venue: Mandalay Bay, Las Vegas, NV Network: HBO PPV/ undercard RingTVLive.com Time: PPV-6PM, undercard-4PM Middleweight Ring & WBC title fight Miguel Cotto 153 1/2   Canelo Alvarez 155 WBC super featherweight title fight Takashi Miura (c) 130  Francisco Vargas 129 1/2 Super Bantamweight Guillermo Rigondeaux 121 1/2