Petr Cech claims Chelsea are hungrier than Manchester United for UEFA Champions League glory.
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The Blues goalkeeper will line up against United in Wednesday night's all-English final in Moscow.
And he believes losing out to Sir Alex Ferguson's men in the race for the Premier League title will work in his side's favour.
"They won the title, they were possibly celebrating and even though you know you've got something big coming up you feel relaxed," Cech told ITV.
"You feel: 'We've done it in the last game,' and mentally it can be difficult for them. So it can be a big boost for them or they can lack the concentration as they have one big trophy already behind them.
"For us it is the opposite. We were disappointed to lose the league as we came so close and it is an extra motivation for us to know go and win the trophy.
"Winning the title is a psycological advantage for them, it's a big boost. But in the back of your head you know you've achieved something and they may relax."
Cech is expecting a tight game because the two sides know each other so well.
"If you ask me if we can surprise each other, I say no, because we have played them so many times over the last years and both teams haven't changed much," he told the BBC.
But he is wary of the one player most likely to produce the unexpected, Cristiano Ronaldo, who already has 41 United goals to his name this season.
"The way he scores the goals is unbelievable," Cech said.
"Because he can score from the free-kick, he can score from the penalty, he can score with a header from a corner, and he can score with both feet."
But the keeper added: "You need to remember as well they have a great team. They have an attacking threat, with (Wayne) Rooney, you've got (Carlos) Tevez, you've got (Ryan) Giggs.
"They can use the ball quickly and they change position, they rotate a lot.
"That is why they are dangerous and can score a lot of goals because not everyone can cope with that."
Chelsea's style of play is often compared unfavourably to that of United and Arsenal, but Cech insists winning silverware is all the matters in the long-term.
"In the end, they will all remember only the years with the trophies," he said.
"I don't think people will say 'I remember the Arsenal squad between 2004 and 2008'.
"They never won anything. So maybe in 10 years' time, no-one will remember."
Cech, widely considered one of the world's best goalkeepers, has recently been linked with a big-money move away from Stamford Bridge.
But he said: "I have still two years at Chelsea. I'm very happy here. I hope to be here as long as I can."