Appointed: June 2004
Sacked: Left September 20th, 2007 under "mutual consent"
Love him or hate him, he was brought in to get results and that's what he did. Mourinho was Abramovich's first hire and was brought in to establish Chelsea as a world power.
After bringing the Champions League trophy to Porto in 2004, Mourinho became linked to a move to England. Abramovich seized the opportunity and hired the Portuguese, who immediately established his presence by declaring himself "the special one" in his introductory press conference.
Bankrolled by Abramovich, Mourinho built his team, buying 70 million pounds worth of players such as Didier Drogba, Petr Cech, Ricardo Carvalho and Paulo Ferreira.
The new players would have an immediate impact, winning the Carling Cup and their first-ever Premier League title by a comfortable 12 points. They led the league most of the season and only suffered one loss to Man City.
Mourniho's quest for back-to-back Champions League titles did not go as well. Chelsea again would work their way relatively easily to the semifinals against Liverpool, knocking off Barcelona and Bayern Munich in the process. Mourinho's side would draw 0-0 at home and then lose 1-0 at Anfield to end their run.
With the success and all signs pointing toward the future, the Special One would return for the 2005-06 season.
Chelsea began where they left off. They won their first two games and never lost their position at the top of the table, winning their second consecutive Premier League title.
However, success elsewhere was non-existent. They were knocked out of the FA Cup in the semis and embarrassingly out of the Carling Cup in the third round after losing on penalties to lowly Charlton Athletic.
Their Champions League season that year ended more disappointingly than the previous. A draw against Barcelona in the first knockout round was too much for the Blues to handle as they lost 3-2 on aggregate.
During the summer of 2006, the coach would experience the beginning of the end. A disagreement between Mourinho and Abramovich over the signing of Ukrainian striker Andriy Shevchenko would put tension on their relationship. Mourinho would ultimately be right in questioning the Russian's insistence on bringing the Milan man to London as he had little positive effect on the team.
Other signings would prove more productive. Bringing in Michael Ballack, Ashley Cole and Salomon Kalou were all helpful to that year's campaign.
It was a mixed season for Chelsea, winning the Carling and FA Cup, but losing out on their third straight Premier League title to Man U after finishing second.
But again Champions League was the focus.
Chelsea would advance all the way to that year's semis, where again they would lose out to Liverpool in dramatic fashion. Penalties at Anfield were too much for the Blues as they ended another Champions League in disappointment.
Throughout the season off-field tension plagued the Bridge. Further disagreements between Abramovich's staff appointments (including over Mourniho's future replacement, Avram Grant) and Mourinho made the atmosphere hostile. It was becoming quite obvious that at some point these two giant egos would need to subside or part ways.
The beginning of the 2007-08 season was not as prosperous as the others. After losing the Community Shield on penalties, Mourinho's side would have a record of 3-2-1. They would also only manage a 1-1 draw to the Norwegian side Rosenborg in the Champions League.
A combination of poor results and off-field tension saw Mourinho leave the club on "mutual consent." He left as the most successful coach in club history, winning six trophies in three years. He also had an impressive home streak, having never losing a league game at Stamford Bridge.
But even the Special One was unable to deliver Abramovich's precious Champions League.