WBA/WBC/IBF/IBO middleweight champion Gennady Golovkin (35-0, 32 KOs) will defend three of his four world titles against IBF welterweight champion Kell Brook (36-0, 25 KOs) on Saturday night at the O2 Arena in London.
The WBA middleweight belt will not be at stake.
WBA president Gilberto Jesus Mendoza said, “The Championships Committee and the Presidency have not agreed to sanction this bout as a title fight because Brook has never fought as a middleweight.
“If Golovkin were to lose to Kell…