Team Canada's Summit Series goaltending was equally shared by Ken Dryden (left) and Tony Esposito. Melchior DiGiacomo, Getty Images
"What I noticed is that you couldn't play that old-fashioned goaltending style -- coming out of the crease to cut down angles," said Esposito, who furthered the butterfly style pioneered by Glenn Hall with the Detroit Red Wings, then Chicago. "From that series, especially, the concept of challenging the shooter was changed dramatically."
In his 1973 book "Face-Off At The Summit," Dryden candidly explained in fine detail how Esposito's butterfly style was better suited against the Russians than his own stand-up, angle-cutting, shooter-challenging method.
Esposito got Sinden's call for critical Game 2, a 4-1 win in Toronto on Sept. 4, and again for Game 3, a 4-4 tie in Winnipeg on Sept. 6. Dryden returned for Game 4 in Vancouver, a 5-3 loss on Sept. 8, sending the series to Moscow with the Russians leading 2-1-1.
Esposito was in net for Game 5 on Sept. 22, which would be a monumental meltdown. Up 4-1 nine minutes into the third period, the Russians scored four unanswered even-strength goals to win 5-4. Canada now faced two elimination games that, even if won, would serve up a winner-take-all Game 8.