I think that is a lie fabricated by the press and his management. Rocky went on to beat Ivan Drago (a steroid abuser it turned out) in a 15 round match in Russia. He even got the RUSSIANS to cheer for him, thus ending the cold war.
Ill be damned if im going to sit here and let you say something bad about the greatest heavyweight boxing champion that ever lived. He beat Hulk Hogan for crying out loud!