Complex sentence: Gennady Gennadyevich Golovkin (born 8 April 1982) is a Kazakhstani professional boxer and the current, unified WBA (Super), IBF, WBC (interim) and IBO middleweight champion.
Split into simpler sentences: Gennady Gennadyevich Golovkin (born 8 April 1982) is a Kazakhstani professional boxer. He is the current, unified WBA (Super), IBF, WBC (interim) and IBO middleweight champion.