Bernard Hopkins, the oldest champion in boxing history, is set to make a historic title defence at age 47 in a rematch against fellow American Chad Dawson in April in Atlantic City.
Hopkins will defend his World Boxing Council light-heavyweight crown against Dawson in a rematch of a fight last October in Los Angeles that ended in round two when Dawson lifted Hopkins by the leg and slammed him into the canvas.
Hopkins suffered a dislocated joint connecting his left shoulder and collarbone and has yet to resume full training.
Referee Pat Russell awarded the fight to Dawson, saying no foul had been committed, but the result was overturned to a no-decision at a December hearing and the WBC ordered a title rematch.
Hopkins, who turned 47 last week, is 52 and five with two drawn and 32 knockouts while Dawson's record is 30 and one with 17 knockouts.