Nicknamed "The Dream", Defiagbon fought for Canada and won the heavyweight silver medal at the 1996 Summer Olympics.

Born in Sapele, Nigeria, Defiagbon won gold in the welterweight (– 67 kg) division at the 1990 Commonwealth Games.

[1] In 1992 in Barcelona at the Summer Olympics he represented Nigeria and was eliminated in the first round of the light middleweight division (7 to 8 against Raúl Márquez).

Defiagbon went on to fight for Canada for whom he won the heavyweight silver medal (limit 201 lbs) at the 1996 Summer Olympics beating Nate Jones, losing to Félix Savón.

1990 Commonwealth Games 1992 Summer Olympics 1996 Summer Olympics Defiagbon began his professional career that same year and won his first 21 fights against limited competition, and was a significantly undersized heavyweight with little power although he was 6 ft 5 in (196 cm) tall.