Jose Mourinho has signed a new four-year contract with Chelsea.

The Blues announced Mourinho's new deal on the eve of the Barclays Premier League season opener with Swansea.

The Portuguese, who is in his second spell at Stamford Bridge, won the Capital One Cup and Premier League title last term for the Blues.

The new deal ties the self-proclaimed Special One to Chelsea until June 2019.

The 52-year-old said on www.chelseafc.com: "If the club is happy, I am happy.

"I think this is a normal thing for me to sign a new contract. It is important we have this continuity and I hope we can enjoy more success in the future - for the fans, the players and the club.

"I said when I returned here two years ago that I have a special feeling for this club and nothing changed.

"It is the club closest to my heart and I am very happy to know I will be staying here for a long time."

Mourinho had a highly successful first spell with Chelsea from June 2004 to September 2007, winning back-to-back Premier League titles in his first two seasons.

His third Premier League crown last term was Chelsea's first championship in five years, since 2009/10.

Following his return to west London, the former Porto, Inter Milan and Real Madrid boss has often spoken of his desire to stay at Chelsea for as long as owner Roman Abramovich wants him. And it appears the feeling is mutual.

Chelsea director Marina Granovskaia said: "We are very happy that Jose has committed four more years to the club.

"Since his arrival two years ago he has carefully developed the playing squad and brought trophies to Stamford Bridge.

"We look forward to the next four years and the continued success of the team."