Which team completed the 2003–04 Premier League season unbeaten? Arsenal did, becoming the Premier League’s Invincibles.
Arsenal finished the entire 2003–04 league campaign without losing a match: 26 wins and 12 draws. Arsène Wenger’s team secured the title with an 11-point margin over Chelsea, turning an extraordinary unbeaten run into one of English football’s defining modern achievements.
The side was led by captain Patrick Vieira and featured players including Thierry Henry, Dennis Bergkamp, Robert Pirès, Freddie Ljungberg, Sol Campbell and Ashley Cole. Arsenal’s league unbeaten run eventually stretched to 49 matches, continuing into the following season before ending against Manchester United in October 2004.
The word “unbeaten” is sometimes confused with winning every match. Arsenal drew 12 times, so they were not perfect in the points sense; their achievement was avoiding defeat throughout all 38 league fixtures. Their nickname, “The Invincibles,” reflects that distinction. Arsenal were the first Premier League team to complete a full season unbeaten, repeating a feat last achieved in England’s top flight by Preston North End in 1888–89.