On this day (16 October) in 2004 eventual champions Chelsea were defeated 1-0 by Manchester City at the City of Manchester Stadium (now Etihad). City were the only side to beat the champions during 2004-5 and managed to draw the return fixture 0-0. You can read more on the October game below:
By the time Chelsea arrived in Manchester on 16th October the Blues were 12th on 8 points, while the visitors were second, behind Arsenal, on 20 points. Chelsea were also one of only two sides unbeaten in the League and were, without doubt, favourites to win this match. Keegan optimistically told fans pre-match: “It is still 11 against 11 on the day and we are more than capable of beating the top sides.”

The manager’s views proved correct as City defeated the eventual champions 1-0 with an 11th minute penalty from Nicolas Anelka. It was the first time Jose Mourinho had suffered a defeat at Chelsea and was only the second time his side had conceded a goal during 2004-05. It was also City’s first home victory over the London club in the Premier League. Sadly, Jihai Sun suffered cruciate ligament damage and was to miss the rest of the season.

The Jihai Sun injury was not the only one affecting Keegan’s side during the first half of the season and, as the Blues had one of the smallest squads in the Premier League, the manager found himself with few players to choose from at times.