Background
He was born Monek Prager in Krakow, Poland. His father was a rabbi, and the family fled the Nazis, emigrating to England in the late 1930s.
He was born Monek Prager in Krakow, Poland. His father was a rabbi, and the family fled the Nazis, emigrating to England in the late 1930s.
Having turned professional as a boxer illegally aged 15, Duff retired aged 19. After working as a salesman, including selling sewing machines, Duff returned to boxing to make matches across the United Kingdom. Duff was involved with 16 world champions and many leading British fighters, including Frank Bruno, Joe Calzaghe, John Conteh, Terry Downes, Lloyd Honeyghan, Maurice Hope, Charlie Magri, Alan Minter, John H Stracey, Jim Watt and Howard Winstone. He was inducted into the International Boxing Hall of Fame in 1999.
Duff died at a nursing home in south London on 22 March 2014 from natural causes at the age of 84, having had Alzheimer"s disease.