Lambert focused on league

The Canaries have impressed on their return to the top-flight and are currently eighth in the Premier League with 35 points.

A win against their Championship opponents would put them in the quarter-finals of the competition but Lambert has already outlined where his focus lies.

"I won't treat it lightly but the Premiership is our main priority," he said. "We want to progress but the main thing is survival in the league. It is vital for the club."

Lambert will make changes, with striker James Vaughan set for a role against Leicester after returning from a long-term knee injury to score for the reserves in midweek.

Respect

"James Vaughan will be in the squad," Lambert said. "He is looking a lot better now than he was a few weeks ago. He did fine against West Brom in the reserves.

"You give it (the FA Cup) every respect it deserves. There will be some changes in the team but it won't be a weakened side, that's for sure.

"It's a game we will go and try and win and it's a chance to get through.

"Zak Whitbread is not available. He's doing all right at the minute, but I think this game is just too early for him.

"I'll have to see how Adam Drury is feeling. Hopefully he'll be okay. Elliott Bennett seems to be ok, but the team I play will be strong.

Confidence

"There is a good chance Jed Steer will play, I'll decide tomorrow."

Lambert knows expectations will be high of a Norwich victory against Championship opposition they beat comfortably in the league last season.

He added: "We are playing really well, the confidence is really high at the minute but the lads know what to expect.

"It's going to be a really tough game. Everyone will turn up expecting us to win against a Championship side but it is not that long ago we were playing them ourselves."