It's 20 years since Martin Keown and Ruud van Nistelrooy locked horns. Old Trafford, September 21, 2003.
Keown was fined £20,000 for his part in the riotous eruption that followed a disputed red card for Patrick Vieira. Arsenal were angry and believed Van Nistelrooy had conned the referee with his reaction.
It was the escalation of years of intense rivalry between the two best teams in the country and, after Van Nistelrooy missed a late penalty in the 0-0 draw, Keown's taunting celebration earned him a reputation and created one of the Premier League's iconic images.