Welsh boxing legend Joe Calzaghe has announced his retirement from the sport. The 36-year-old from Newbridge was undefeated in 46 fights and reigned as super-middleweight champion for 10 years, making 21 world title defences, before stepping up to claim the undisputed light-heavyweight crown. "I've been world champion for 11 years," Calzaghe told BBC Sport. "I've got no other goals to go for. That's why I am calling it a day." Ben Dirs looks back at the career of one of Britain's sporting greats. The BBC is not responsible for the content of external internet sites | 
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