In October 1978, a few months after the Bruins lost to the Montreal Canadiens in the Stanley Cup Final, Grahame was traded to Los Angeles for the Kings' first-round pick (No. 8) in the 1979 NHL Draft.
The Bruins watched the Chicago Blackhawks select Keith Brown at No. 7, so they had to settle for a defenseman out of Montreal named Ray Bourque.
"It was a number of years [after that trade] that it dawned on me," Grahame said. "It became more of a conversation piece as I was coaching, later in the '80s, well after Ray had established himself."
Grahame said he met the Hall of Fame defenseman on Oct. 4, 1999, when John was making his NHL debut for the Bruins in Toronto.
"We went and saw that game, Ray came out and said hello," Grahame said. "He knew who I was and I knew who he was. But it was an interesting dynamic. My rights traded to L.A., and that turned out to be Ray for Boston, and there was my son playing goalie for the Bruins."
Five months later, Bourque would be traded to the Avalanche and the following season would help get Charlotte's name on the Stanley Cup for a second time. Bourque skated for the Avalanche alumni Friday in the 2016 Coors Light NHL Stadium Series Alumni Game.
With the Avalanche celebrating their 20th anniversary, this is a great weekend for Denver hockey.
"[University of Denver] Hockey has been a pretty consistent part of the community from the '60s," Grahame said. "But I think with the Avs being here, it's grown the game, no question. They have grown the game the way a successful NHL team can."
On Feb. 20, the University of Denver played Colorado College on the outdoor rink at Coors Field, drawing more than 35,000 fans and setting the stage for what will be an even bigger crowd Saturday.
"People in Colorado got a tremendous taste of the outdoor game with our game against Colorado College," Grahame said. "I think [the Stadium Series] will be a great event."