Eddie Hearn previews Brook V Golovkin

Eddie Hearn says Kell Brook will be known as the best boxer in the world at the moment if he can beat Gennady Golovkin on Saturday. Sheffield's IBF Welterweight title holder steps up two weight divisions to fight for the WBA super, WBC and IBF middleweight titles. Hearn says the fight will be a risk worth taking for the Yorkshireman.