King's Lynn boss Gary Setchell is urging his FA Cup underdogs to have 'no regrets' ahead of today's fourth qualifying round tie at Conference Premier Tamworth (3pm).

Setchell wants the UCL Premier Division title challengers to enjoy the daunting test at The Lamb against a full-time outfit within touching distance of the Conference play-offs.

'We will go there and obviously we will have to set up in a way that pays Tamworth respect because they will move the ball like nothing we experience in the UCL,' he said. 'We'll have worked on the shape without the ball as much as with it, but when we have it I want us to go and test them. If we can stay in the game until the last 25 or 30 minutes you just never know.

'There will be plenty of nerves and pressure on them. I don't want us to have any regrets. If we went there and set up with ten men behind the ball and got beat four or five that would be hard to take. I don't want to wake up on Monday and we've lost 3-0 and felt we didn't give it a proper go or didn't do ourselves justice. It's the FA Cup and there will be a big shock this weekend. Why can't it be us?'

Setchell has done his homework and insists Town will be ready.

'We sent someone to watch them and I spoke to Graham Drury (Corby manager) the other night and we are under no illusions how tough it is going to be,' he said. 'Of course it is going to be difficult because they are a very good side playing at a much higher level than us, but we have earned the right and I want the lads to go and enjoy it. This will be a new experience for them. They deserve it.

'Not many sides in the country will win five games in the FA Cup this season. We are a UCL side and I remember a King's Lynn team that was in the Blue Square North going to Cambridge and losing 5-0 in a cup competition not that long ago so it underlines the size of the task. I have played in the Conference myself and I know the standard and I also know Tamworth will not take us lightly.'

Defender Stuart Wall (knee) has been ruled out for between three to six weeks. Danny Beaumont was poised to undergo treatment on a back problem at the club's final training session. Recent arrival Rob Hughes is cup-tied but fellow midfielder Jamie Thurlbourne is in contention after making his long awaited first team return during the past week.

'Jamie is a big plus coming back, but he has missed the last five or six weeks in terms of fitness so he isn't there yet,' said Setchell. 'Whether he starts or comes on he has a role to play because his delivery on set pieces could have a big say in the outcome of the game.

'Rob is cup tied, which is a blow, because he has been decent in the two games he has come on. He has that composure on the ball, he doesn't give it away and he will turn into a big player for us.'