Yvan Cournoyer knew he couldn't get off even if he'd wanted to.   The Hockey Hall of Famer's admission that he was running out of gas and would not be able to get to the bench changed hockey history.

"The Roadrunner" put pedal to the metal and stayed on to slay the Soviet empire with a little help from Paul Henderson, who wasn't even his linemate but had waved Peter Mahovlich off the ice.

The pressure, Cournoyer says, was greater than any Stanley Cup playoff series.   The reward?   Memories for alltime.

Listen to Cournoyer in a CJAD 1-on-1 about the greatest comeback in hockey history.