On May 7, 2003, just over 38,000 fans watched on at Highbury as Arsenal ran riot against Southampton, with Robert Pires and Jermaine Pennant both helping themselves to hat-tricks in a 6-1 hammering.
It was an emphatic response to their 3-2 home defeat by Leeds United just three days earlier which had seen them officially surrender the title to Manchester United, despite having led the way for much of that 2002-03 campaign.
A run of one win in five for Arsenal allowed Man United to leapfrog them and regain the crown, but the victory over Southampton on this day 21 years ago sparked the greatest run in their history, and in the history of English domestic football.
The Gunners would not lose again until October 24, 2004, going through the entire 2003-04 league campaign unbeaten to be crowned the 'Invincibles' - something no other team has managed since.
To mark the anniversary of the start of that record-breaking 49-game unbeaten run in the league, Sports Mole is challenging you to name every team Arsene Wenger's side came up against in that time.