Which South African professional boxer did  Cedric Kushner managed
Cedric Kushner Cedric Kushner (July 18, 1948 – January 29, 2015) was a South African-born American boxing promoter and manager. In the late 1990s he was one of the most significant promoters in the sport. Boxers he promoted and/or managed included Hasim Rahman, Shannon Briggs, Oleg Maskaev, Chris Byrd, Corrie Sanders, Ike Ibeabuchi and David Tua.
Malcolm Klassen Malcolm Klassen (born in Toekumsrus, Randfontein, South Africa) is a professional boxer in the junior lightweight (130 lb) division. Known as "Stone", he was a virtual unknown in the boxing world until he challenged and defeated Gairy Saint Clair for IBF world junior-lightweight title on 4 Nov 2006. He lost his belt in his first defense against unheralded Mzonke Fana.