After two close unanimous decision victories in his first two heavyweight contests against Vinny Maddalone and in his last outing, Fres Oquendo in May, Mormeck faces the dangerous power puncher from Baltimore.
Rahman, 37, has knocked out his last four opponents, two in the first round since losing his third world title tilt against Wladimir Klitschko in 2008.
“The Rock” did win the world title in 2001, sensationally knocking out arguably the best heavyweight of his generation in Lennox Lewis but lost the title in the rematch seven months later when he was badly knocked out himself.
Mormeck is now 38 and held the unified cruiserweight title until being knocked out by David Haye, who himself has moved up to heavyweight with considerable success, claiming the WBA Title.
If the Frenchman comes through against Rahman, then a rematch with the Briton could be on the horizon for Mormeck.