Chelsea boss Jose Mourinho has signed a new five-year contract, effective from the start of the new season.
Mourinho has led Chelsea to two trophies in his first season
The 42-year-old, who signed an initial three-year deal last summer, has now pledged to stay until 2010.
"I am delighted to be signing this new contract. My heart is with Chelsea and the fantastic group of players I have," Mourinho told Chelsea's website.
"But the vision of the owner and the board for the future of Chelsea is also one I want to be part of."
He added: "I am totally behind this project and their support in achieving it means Chelsea is the place where I will be happiest in my work.
"I cannot imagine another club or situation where I would be happier."
Mourinho was already the highest-earning manager in the Premiership, with an estimated total of £5.1m this season, according to a survey by France Football magazine.
However, his new deal is expected to earn him around £5m a year, even before bonuses or commercial deals.
The Portuguese has been rewarded for a superb first season at Stamford Bridge during which the Blues won the Carling Cup and the Premiership title.
Mourinho's side also reached the Champions League semi-finals before they were knocked out by Liverpool on Tuesday.
However, despite that agonising defeat, Mourinho returned to Stamford Bridge to sign his new deal.
"This is great news for everybody concerned," said Chelsea chief executive Peter Kenyon.
"Both the club and Jose share a long-term vision for the future, that was clear from the moment we first met.
"We talked then about a 10-year plan for Chelsea and Jose wanted to be an integral part of building that.
"As soon as the Carling Cup was won talks over a new deal began as it was apparent to all sides that a longer commitment was the way forward.
"This deal demonstrates Jose's commitment to Chelsea and also our certainty that he is the best manager to take the club into a new, exciting and successful era."