 In June 2003 , Bates sold Chelsea to Russian billionaire Roman Abramovich for £ 140 million . Over £ 100 million was spent on new players , but Ranieri was unable to deliver any trophies , and was replaced by José Mourinho . Under Mourinho , Chelsea became the fifth English team to win back @-@ to @-@ back league championships since the Second World War ( 2004 – 05 and 2005 – 06 ) , in addition to winning an FA Cup ( 2007 ) and two League Cups ( 2005 and 2007 ) . Mourinho was replaced by Avram Grant , who led the club to their first UEFA Champions League final , which they lost on penalties to Manchester United . 
