Manager Claudio Ranieri was sacked on 31 May 2004 and was replaced by José Mourinho.

In July 2003, long-time chairman Ken Bates sold the club to Russian billionaire Roman Abramovich.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Squad details and shirt numbers from [3] Archived 26 December 2007 at the Wayback Machine and [4].