October 20, 1990 - Manchester United 0 Arsenal 1 (Limpar 42'): Granted, this game came just before the start of the Premier League (yes, there was such a time) but it was one that should be considered the kindling to the fire that eventually raged between the two clubs. A second-half tackle by Arsenal's Nigel Winterburn on Denis Irwin would spark a fracas involving all but one of the 22 players on the pitch. Only Gunners goalkeeper David Seaman decided he did not fancy joining in. It lasted little over 20 seconds but would result in both teams being fined and deducted points. Arsenal would still go on to win the title, though. Getty

Battle of the Buffet, 21-man brawl, Arsene Wenger in the stands: classic Manchester United and Arsenal clashes – in pictures