Although the club is only one point above the relegation zone, the 52-year-old coach had been defiantly insisting he was the right man to oversee the team.
A 2-1 loss at Leicester on Monday was Chelsea’s ninth in 16 games, the worst-ever start for a defending champion team in the Premier League.
“Both Jose and the board agreed results have not been good enough this season and believe it is in the best interests of both parties to go our separate ways,” Chelsea said in a statement.
Below are 10 facts about the Portuguese.
(1) He leaves with Chelsea just a point off the relegation zone and 20 points behind Leicester.
(2) Mourinho is Chelsea’s most successful manager.
(3) Won three Premier League titles, two of those in his first spell between 2004 and 2007.
(4) Won the FA Cup, in 2007, and the League Cup three times – in 2005, 2007 and 2015.
(5) FIFA World Coach of the Year: 2010
(6) Primeira Liga Manager of the Year: 2002-03, 2003-04
(7) Serie A Manager of the Year: 2008-09, 2009-10
(8) UEFA Manager of the Year: 2002-03, 2003-04
(9) BBC Sports Personality of the Year Coach Award: 2005
(10) The 2011-12 Liga title represented a significant milestone for Mourinho, as it meant he had won the league title in Portugal, England, Italy and Spain, each of the four countries in which he had coached.