Which South African professional boxer did  Cedric Kushner managed
Corrie Sanders Cornelius Johannes "Corrie" Sanders (7 January 1966 – 23 September 2012) was a South African professional boxer who competed from 1989 to 2008. He won the WBO heavyweight title in 2003 after stopping Wladimir Klitschko in two rounds, which was considered one of the biggest upsets in heavyweight boxing history; "The Ring" magazine named it the Upset of the Year. In 2004, having vacated the WBO title, Sanders faced Wladimir's brother Vitali Klitschko in an unsuccessful challenge for the vacant WBC and "Ring" heavyweight titles.
Jimmy Kelso Jimmy Kelso (born 10 March 1910, Sydney; date of death unknown) was an Australian professional feather/light/welterweight boxer of the 1920s and '30s who won the New South Wales State (Australia) lightweight title, Australian lightweight title, and British Empire lightweight title, his professional fighting weight varied from 119 lb , i.e. Featherweight to 144+3/4 lb , i.e. Welterweight.