On 5 August 1970, a pre-season match between second-tier Hull City and European giants Manchester United changed football forever.
With the game drawn, it became the first professional competitive fixture in the world to be decided by a penalty shootout. Tied matches were previously decided by coin tosses, the drawing of lots or replays.
The match was in the inaugural season of the Watney Cup, which was a short-lived English knockout competition.
Manchester United's team included George Best, Denis Law and Bobby Charlton.
Hull City player Frankie Banks and fan Martyn Kelly, who was 11 at the time, tell Phil Jones how the penalties played out.
Banks said: "Looking back, it was wonderful to be a part of history. The atmosphere was electrifying.
"The Manchester United players were our heroes. We wanted to prove to everybody that although they were probably the best side in the world, we could go out and give them a game."
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