LONDON, Dec 27: Undisputed super-middle weight champion Joe Calzaghe has admitted he may retire after his next fight.

The WBC, WBA and WBO super-middleweight title holder turns 36 in March and wants to step up a weight to take on Bernard Hopkins at light-heavy next year.

Calzaghe is unbeaten in 44 fights and became the undisputed champion in November.—AFP