Bobby Orr scored the title-clinching goal in overtime in Game 4 of the 1970 Stanley Cup Final, giving the Boston Bruins a four-game sweep over the St. Louis Blues.

Derek Sanderson passed the puck to Orr, who rifled the puck past Glenn Hall 40 seconds into the extra period at St. Louis Arena.

The play produced one of the most iconic goals in NHL history. The immediate aftermath of the play appears magical in images and on video, with Orr flying through the air.

What led to this magical moment?

He was tripped by Blues defenseman Noel Picard after putting the puck in the net.

CBS play-by-play announcer Dan Kelly described the thrilling action this way: “Bobby Orr… behind the net to Sanderson to ORR! BOBBY ORR! …scores and the Boston Bruins have won the Stanley Cup!”

Bobby Orr celebrates his title-clinching goal. (RAY LUSSIER/via WIKIMEDIA COMMONS)

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Read my interview with author Stephen Brunt about his book “Finding Bobby Orr,” which was published in 2007.