Gennady Golovkin will try to earn his 17th title defense against British IBF welterweight champion Kell Brook from the O2 Arena in London, England Saturday.
The bout will air on HBO in the U.S. at 5:30 p.m. ET.
Golovkin (35-0) is the current WBC, IBF and IBO middleweight champion and will be defending his titles against Brook (36-0), who is moving up two weight classes for the bout.
Combined, the two have 57 knockouts.