Gary Setchell admits King's Lynn Town will have to deliver their best display of the season if they want to cause an FA Cup upset.

The Linnets welcome Alfreton Town, who play one level above them, in the penultimate qualifying stage of the competition. Both sides sit in mid-table in their respective divisions with inconsistent displays blighting their start to the campaign.

Lynn reached the heights on Saturday by thumping high-flying Chippenham Town 4-0 at home. But on Tuesday night it was a different story at The Walks as the lacklustre Linnets struggled to a 1-1 draw against Kings Langley.

Setchell was furious with his side's midweek showing and knows they need to at least match their exploits from a week ago if they are to stand any chance of having their name in the hat for Monday's fourth qualifying round draw.

Lynn's boss said: 'The first 20 minutes is key for us. If (anyone from) Alfreton came and watched on Tuesday I should think he's gone home and started counting £7,500 (prize money up for grabs today).

'I think we've got to exceed what we did on Saturday to win the game. If we play like we did on Tuesday the tie will be over after 15 minutes, there's no two ways about it.

'We're going to try and win it because we're at home. We're King's Lynn Town, we're not playing Barcelona, we're playing Alfreton. They'll kick it long, work their socks off and we've got to stand up and be men – exactly like we were against Chippenham, not how we were against Kings Langley.'

Stretched Lynn's cause won't be helped with the loss of another body for the tough test against a side who sit 12th in National League North.

Wideman Kurtis Revan, who has scored in consecutive matches following his arrival from Corby, is cup-tied.

He will be joined on the sidelines by Gary Mills and Leon Mettam as they complete their three-game suspensions. Shaun McWilliams will definitely miss out, Lee Stevenson is a huge doubt, while there are also still injury concerns over Ryan Fryatt and Toby Hilliard.

'What we can do? It's just the way it is at the minute. I've got to hope the players can produce another Chippenham performance,' Setchell added of the game, which will go to a replay if the teams can't be separated after 90 minutes.