Roberto Di Matteo insisted he would not sleep soundly despite watching Chelsea put one foot in the Champions League semi-finals with victory at Benfica.
GettyImagesRoberto Di Matteo was pleased with the win
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Di Matteo masterminded a second straight win in Europe, this one achieved despite the Italian resting six of his increasingly-tired players. After the 1-0 success against what was a toothless Benfica side, the Chelsea interim manager claimed his side still had a mountain to climb.
He said: ''I think we've put ourselves in a good position, but it's not a result you can rely upon for the home game. It's one goal. You look at he results Benfica have achieved in this Champions League... you're not going to sleep very calmly looking at that.''
Only twice has a side come back from losing the first leg at home, although Chelsea became only the fourth team to triumph after suffering a defeat by two or more goals in the away leg when they beat Napoli three weeks ago.
Di Matteo added: ''We are pleased that we're in a different position going into the second leg. We had a mountain to climb against Napoli. We still have a mountain, but it may be a little bit smaller because we've achieved a good result here.''
Di Matteo admitted he took a risk with his team selection, which saw him leave out Napoli heroes Frank Lampard, Didier Drogba and Michael Essien and hand rare starts to Paulo Ferreira, John Obi Mikel and matchwinner Salomon Kalou.
''It's just a question of trying to energise the team, freshen up the team,'' he said. ''We knew Benfica play at a high tempo so we needed fresh players who could run. That was the reasoning behind it.''
Tuesday's match was the third of seven in 20 days for Chelsea.
Di Matteo said: ''I'm involving everybody that is in the squad, rotating. We'll need everybody until the end of the season. Paulo Ferreira hasn't played for a while but was outstanding tonight for me.
''We cannot play with just 11 players. We need everybody in the squad. You'll see other players who have maybe played a little less in the past paying more of a role in the future. It's just impossible for us to play every three days and reach the fitness levels needed to win games.''
Benfica boss Jorge Jesus claimed Chelsea were lucky to win.
He said: ''We were superior in many things to Chelsea, but they were luckier in one moment. We had more opportunities. We didn't deserve to lose tonight.
''We were the better side for long periods, had more shots on goal and Chelsea didn't see much sight of our goal. But what counts is the result.''
He added: ''Chelsea showed how experienced they are in this game. The only time they got anywhere near our goal they scored. It was not a just result, but they scored the only goal.
''They managed time through the game, waiting patiently for a chance to score. When it came, they took it. They showed their experience, and these were two great teams.''
Jesus insisted his side, who helped eliminate Manchester United, would not throw in the towel in next week's second leg at Stamford Bridge.
''We can still go there and win. We've scored in all our away games so far, so we can easily go there and win.''