On February 13, 1999, one of the most dramatic and unique matches in the history of the FA Cup took place at Highbury.
Sheffield United were the visitors for a fifth-round tie against Arsene Wenger's side, who were looking to defend the trophy they had won the previous year.
All seemed to be going to plan when Patrick Vieira opened the scoring before half-time, but Marcelo equalised for the Blades just three minutes after the restart.
But the real drama occurred when the visiting goalkeeper Alan Kelly kicked the ball into touch so team-mate Lee Morris could receive treatment. From the resulting throw-in, which Ray Parlour aimed at Kelly, Kanu misunderstood the situation and collected the ball and crossed for Marc Overmars to score.
The Blades felt it was a breach of sportsmanship, and while the goal was allowed to stand as no rules had been broken, after the match Arsene Wenger immediately offered to play the game again.
The decision was ratified by the Football Association, and 10 days later, Highbury played host to the rematch, which we won 2-1.
Our homepage today is dedicated to this extraordinary moment in FA Cup history, and you can click on the 'Play' button above to watch our special video explaining the events of February 13, 1999.
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