COBHAM, England (Reuters) — Coach Jose Mourinho expressed his concern yesterday that Chelsea's fixture congestion will leave them at a disadvantage in their Champions League quarter-final with Valencia.The champions face a particularly busy schedule ahead of the first leg at Stamford Bridge on April 4 after being held 3-3 by Tottenham Hotspur in the FA Cup quarter-finals on Sunday.

That result has added a replay at Spurs on March 19 to a programme that already involves three Premier League games and two international matchdays on March 24 and 28, which will also draw heavily on his squad's resources.

By contrast, Valencia have a relatively quiet build-up.

"Yesterday I was watching Valencia and I analysed what they have to do until they play against us," Mourinho told a news conference at Chelsea's training ground. "They play only two matches, at home in the Spanish League. They have two complete weeks to train, and when I say train I mean to train properly, tactically, with a big game in mind.

"Also, during the national team period, I will have with me only (goalkeepers) Cudicini and Hilario — nothing else. Everybody else goes away.

"But during these 15 days, Valencia have a couple of Spanish players in the national team and a Portuguese right-back and that's it.

"During the next three and a half weeks my players have to play Man City, Sheffield and Watford in the Premiership plus Tottenham in the FA Cup, plus two international games. So they have six matches — and Valencia players have two.

"So of course it worries me. Not just because you can get injuries but because you can get tired. And, as a manager I can't do my work."

Mourinho was also frustrated by newspaper reports linking him with a move to Real Madrid at the end of the season.

"What I can tell you is as always the press choose the words they want to choose and not the words that people say," said the coach, who was speaking at a news conference for children's cancer charity ClicSargent.

"The question was 'would I like to train Real Madrid?' The answer was 'every coach would like to do it, it would be an honour to work in a club like Real Madrid'.

"I don't say 'no' for the future, but I say clearly 'no' until 2010 because I have a contract with Chelsea.

"I want to stay in Chelsea. I am in love with Chelsea. I am in love with English football."

[bul] Ghana midfielder Michael Essien signed a new five-year contract yesterday that will keep him at Chelsea through 2012.

The 24-year-old Essien is in his second season at Stamford Bridge. He has played in all but one match this season, making a total of 46 appearances in a variety of positions in both midfield and defence.

"It didn't take me long to decide to sign," Essien said. "I am really happy because I came here to stay a long time. I really work hard in training and do everything to succeed. I have the ambition to win a lot of trophies for the club."

Essien joined the Blues from Lyon in 2005 for what was then a club-record fee, reported to be [POUNDSTERLING]24.4 million ($47 million), and helped the club win its second Premier League championship in a row.

Chelsea is currently in second place, nine points behind Manchester United, but still in contention in the FA Cup and Champions League.

"It is great to have somebody like Michael, who has already made a huge contribution, commit for another five years," Chelsea chief executive Peter Kenyon said. "We spent a summer getting him, it wasn't easy, and it is nice to be on the next step."