"I will never forget the record-tying point," Maple Leafs great Lanny McDonald told NHL.com in February 2016 on the 40th anniversary of Sittler's milestone game. "There was such a buzz in the dressing room in the second intermission, especially after [Maple Leafs publicity director] Stan Obodiac came in and told Darryl that he was one point shy of tying Rocket Richard's record [of eight points in a game]."
Montreal Canadiens forward Maurice Richard had established the League's single-game record with five goals and three assists in a 9-1 win against the Detroit Red Wings on Dec. 28, 1944. Canadiens forward Bert Olmstead equaled Richard with four goals and four assists in a 12-1 victory against the Chicago Blackhawks on Jan. 9, 1954.
With history at his doorstep, Sittler tied Richard and Olmstead with a third-period goal, then scored two more to seize the record for himself and bring the roof down at Maple Leaf Gardens.
In the past four decades, Sittler has never had an answer for why he was able to have that magical night.
"The Bruins were a good team," he told the Toronto Star on the 40th anniversary of his historic performance. "For us to score a lot of goals made it a lot of fun. … I just happened to be in on 10 of them. Why it happened? I don't know.
"I can honestly say there are games I felt I played as good or better. You have good chances and you don't score. You make a great pass to a guy and he doesn't put it in. That night, it all ended up on the scoreboard."
Sittler had arrived in the Maple Leafs family at the 1970 NHL Draft, selected at No. 8. There wasn't a celebration or a walk to the stage to pull on a team jersey, as happens today. Sittler heard the news on the radio as he worked a summer job, installing swimming pools.
His selection came without even an interview with his new team, the Maple Leafs quite happy with their scouting of the 6-foot center, who scored 42 goals with 48 assists for London of the Ontario Hockey League in 1969-70, his final season of major-junior eligibility.
Maple Leafs general manager Jim Gregory would give Sittler jersey No. 27 at training camp, a gesture that carried significant weight and expectation; Hall of Fame-bound Frank Mahovlich had worn that number with great distinction in Toronto for 12 years.