Defender Ricardo Carvalho admits Chelsea's mistakes against Bolton Wanderers at the weekend will serve as a timely reminder to stay fully focused against Liverpool in the Champions League on Tuesday night.
The Blues shipped three goals in eight second-half minutes at Stamford Bridge against the Trotters, winning the game 4-3, and Liverpool must also score at least three goals if they are to overturn a 3-1 deficit from the quarter-final first leg.
But Carvalho - who will line up alongside Alex in the heart of the Chelsea defence in the absence of suspended captain John Terry - insists there will not be a repeat of the Bolton collapse on Tuesday.
"We have to learn from those mistakes and it is good to play three days after that game," said Carvalho. "We conceded too many when normally we are strong in our back four."
The Portugal international insists Liverpool should not be taken lightly despite the two-goal cushion.
"We have to be aware, this competition means a lot for us so we want to go through," said Carvalho. "We have to think first of ourselves and after look for them, but if you are in good shape you can win the game and go through.
"We are improving always, we had some problems in the previous months but I think you become stronger and now we are in good shape to win a competition for the club.
"I won in 2004 [with Porto] but lost last year, but to win the trophy you have to be there in the final."
Trailing 3-1 from the first leg, and yet to beat an English club away from home in Europe, much will depend on whether Liverpool's midfield talisman Steven Gerrard shakes off a groin problem to play.
But even though the Reds have not scored three goals at Stamford Bridge in two decades, Benitez would have taken heart from Bolton's performance.
But it was also the perfect wake-up call for Guus Hiddink and his squad, and the Dutch coach is determined they will not sit back and defend their lead.
"It cannot be a cautious game where you have a kind of balance in a game where nothing happens for an hour, then maybe a team takes some risks at the end," said Hiddink.
"That's not in both teams' souls. We have to go for the win at home.
"Going 4-0 up against Bolton and then conceding as we did, was like an alarm clock ringing for this up-coming game.
"We should have controlled the last part of the game. We can concede one, at 4-1, but one alarm bell is enough.
"We've prepared very seriously. A lot of people have said, if you win an away game in Europe like we did, then you won't have any concerns for the second game.
"But we're not thinking like that. Liverpool are a very good team who play beautiful football, and we're very aware of that.
"There is no such reason, whatever the team you are playing against but especially Liverpool with what they did in the past, to have complacency."
