City boss Paul Lambert is not planning a “major overhaul” of his side for today’s Premier League visit of Bolton Wanderers – adamant that Wednesday’s 3-0 defeat at Sunderland is gone and forgotten.

“Honestly, I’m not going to let one defeat weigh me down. I never have done,” he said, after his team’s unbeaten start to 2012 was brought to a juddering halt at the Stadium of Light, where he had made five changes from the FA Cup win at West Bromwich Albion.

“We hadn’t been beaten since Tottenham back in December. Listen, it’s gone. There is no point in worrying about it. I don’t lose sleep over it.

“Yes, you mull over it when the game is finished and you are back down the road but it’s like a win, I let it go as quickly as anything and the lads will come out as strong as ever. We’re at home and we’ll give it a go.

“If there is one thing, we will come out of the blocks and we’ll get the crowd behind us.

“I’ve never once had a problem tying to lift them again. I think they are hurt, everybody is hurting because we just never turned up on that night. We never gave them a game – which is so unlike us.”

Lambert added: “I thought on Wednesday night we just never got going. I don’t have to do a major overhaul or anything like that.

“They know they let everybody down and let themselves down. It was a game we thought we could go up there and win but, fair play to Sunderland, they were much better than us on the night.

“If you try looking for things then you will come up with about nine million excuses. The bottom line is we got done. We never performed. It was nothing to do with fatigue, nothing to do with changing the line-up. We just got beaten on the night and we have a chance to rectify it.”

Left-back Marc Tierney, who has not played since the 2-2 draw at Wolves on December 20, has suffered a recurrence of a groin problem and will not feature against Bolton.

Meanwhile, Lambert is looking forward to welcoming new signing Ryan Bennett to Norwich when his month’s loan at selling club Peterborough United is up on February 27.

The England Under-21 defender will cost City a reported �3m after they pipped Swansea to his signature on deadline day.

“You are never quite sure when other teams get involved but I just think he will be a big asset to us when he does join, not just now but for the long term. He is a really ambitious lad who wants to do well,” he said.

“Even though it’s for long term we will look for him to make an impact as soon as he comes through the door. It is entirely in his own hands now.”

Lambert said the loan deal was a compromise because Posh boss Darren Ferguson wanted Bennett back for the rest of the season.

“I had a chat with Darren and I could understand his point of view with us taking him virtually at the last minute and they don’t have an opportunity to bring in an alternative,” he said.

Ferguson said: “It’s good of Norwich to let us keep Ryan for a bit and they’ve also offered us a couple of players on loan which I’m considering.”

Ferguson backed Bennett to make a success of his move into the top flight.

He said: “It’s a great opportunity for Ryan and I am convinced he’ll be a hit. He’s only 21 so he will only get better.

“He’s composed on the ball, he’s brave, he’s good in the air and I’m not surprised he’s made it into the Premier League already.

“In fact he wasn’t in the Posh team when I came back a year ago, so he owes me!

“In an ideal world we would have kept Ryan here until the end of the season, but they want him in their squad straight away so we’ve done well to get him back for a month. He can play in the next five matches for us and I’m sure he will continue to play as well as he has all season.”