Defender Martin Skrtel admits Liverpool cannot afford to drop their standards against Wolves tonight or they risk undoing all the good work of the last week.

Knocking both Manchester clubs out of cup competitions more than made up for the woeful defeat at Bolton which had manager Kenny Dalglish publicly criticising his players.

However, Skrtel believes the performances put in against City and United have to become the norm rather than the exception if the Reds are to re-ignite their bid for a top-four finish.

Having already lost to the likes of Wanderers, Fulham and Stoke - and drawn against Wigan, Norwich, Swansea and Blackburn - the Slovakia international knows what pitfalls await displays which are not up to standard.

"The performance against Bolton wasn't the best but the key before the games against City and United was to forget about the Bolton game," he said.

"I think those two results (against City and United) were the perfect response to that criticism.

"They were two difficult games but now it is a league game and we need to repeat the performance from those two games.

"We have to be focused on the game against Wolves because it will be a similar game to that against Bolton.

"They will be physical and we need to deal with this and get a result there."

Dirk Kuyt, scorer of the winning goal against Manchester United in their FA Cup fourth-round tie on Saturday, agreed with Skrtel.

"I think we set the standard this week," said the Holland international.

"Everyone was really disappointed with the Bolton game and how we didn't put the effort into the game and it was not at the level we want - or used - to play.

"I think we have proved many times we can compete with the best teams and, with respect, we also need to play well against the other teams so the next game is very important against Wolves."

Dalglish did not think his players needed to be reminded of their obligations but he pointed out the minimum expectations.

"You may not always play to the best of your ability but you should always compete to the best of your ability, that is all you can ask," said the Scot.

"The bar has always been set high here and most of the time they have got up to the bar.

"There have been a couple of times when we have not done it but I suppose that is natural.

"If we are going to get anything out of the game we have to put in the same level of performance.

"I don't think people are showing signs of fatigue because we have changed and moved people around.

"Some people have greater demands on them than others - everyone has different levels of fitness - but I don't think there is any problem with fitness."

Wolves boss Mick McCarthy believes Liverpool striker Andy Carroll may have found his £35million price tag a "burden" as he celebrates 12 months at Anfield ahead of tonight's clash at Molineux.

McCarthy is an admirer of Carroll and it is well documented he tried to sign him without success from Newcastle following a loan spell with Preston.

He still believes Carroll will be a success at Liverpool but feels he has not been helped by the size of the fee in adjusting to life with one of the Barclays Premier League's leading clubs.

McCarthy said: "Andy is still a threat but price tags have made life hard for a lot of people.

"We should know from a player who left Wolves a long time ago (to join Manchester City) and was supposedly the top player, in Steve Daley.

"It makes life hard. If it just doesn't happen immediately, then it ends being a bit of a burden.

"He (Carroll) can't help the transfer fee. Straight away, and even more so now, you go to every ground and you're not flying then it's 'what a waste of money.'

"You're getting highlighted and spotlighted. It doesn't make playing any easier that's for sure.

"Maybe Liverpool play a slightly different way to what Newcastle did as well. But give him time. There's no doubt he's a good player."

McCarthy is an admirer of the way Kenny Dalglish has revived the Reds' fortunes during his year at the helm.

He said: "Kenny is Kenny. He's loved by everybody there. It's a great starting point when you go in and you have that wonderful feeling towards you.

"But he's backed it up by getting them into the League Cup final - and they're progressing."

McCarthy insists Wolves have done all they can to bring in new players in January but only on-loan Arsenal midfielder Emmanuel Frimpong and Iceland international Eggert Jonsson have signed.

He said: "We've tried but we've had no joy with it other than taking a terrific player in Manny (Frimpong) on loan and Eggert who looks like he will be a good player for us.

"We've done everything we possibly can."

Wolves will be aiming to end a run of 10 games without a win and McCarthy laughed off rumours he had left the club after the home defeat by Aston Villa 10 days ago.

He said: "Yes, I left - and went back to my house as I do every game. It's not based in Molineux.

"There were wild rumours going around that I'd lost my job. Hey-ho, what can I do about that?"