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LONDON, ENGLAND - SEPTEMBER 10: Spectators record the ring walk on mobile phones during the World Middleweight Title contest between Gennady Golovkin and Kell Brook at The O2 Arena on September 10, 2016 in London, England. (Photo by Richard Heathcote/Getty Images)

LONDON, ENGLAND - SEPTEMBER 10:  Spectators record the ring walk on mobile phones during the World Middleweight Title contest between Gennady Golovkin and Kell Brook at The O2 Arena on September 10, 2016 in London, England.  (Photo by Richard Heathcote/Getty Images)