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.
Mushy Callahan Mushy Callahan (November 3, 1904 – June 18, 1986) was the ring name of Vincent Morris Scheer, a Los Angeles-based boxing champion in the newly created World Light Welterweight Division for five years from 1926-30. The championship was formerly referred to as the World SuperLightweight Title. After his retirement from boxing in 1932, Callahan refereed hundreds of matches, and had a thirty-year career taking small roles in movies, most with boxing themes, as well as working as a stuntman and boxing adviser on movie sets.