David Wagner tells Huddersfield to remember their roots as United arrive

The Terriers have not won in six Premier League games since marking their return to the top flight with back-to-back victories over Crystal Palace and Newcastle.

They have registered just three points during the slump and with Jose Mourinho's side next up, Wagner has urged his players and fans to remember what made them successful.

"Maybe this is the right time, we have to make sure we are totally clear what made us strong in the past and we do not forget where we are and where we came from," Wagner said.

"We should not make (this) one mistake, and I know our supporters will not make (this) one mistake.

"Do not take the extraordinary as ordinary, do not take the unusual as usual.

"If we start to expect these things, it will cause big problems. Our clear vision is that we still have no limits, but we do not have expectations that are unrealistic. "

Huddersfield face United for the first time since 1972 - they have not beaten them since 1952 - and Wagner aims to tap into the excitement.

"I think this only shows what a story we are working on," said the German, whose wife and youngest daughter joined him permanently in West Yorkshire this week in time to help celebrate his 46th birthday on Thursday.

"It's such a long time since we last saw (United) here in the highest division, so this shows how excited everyone will be on Saturday.

"It's maybe one of the biggest clubs in the world and we will create one of the best atmospheres. We are excited to have the chance to play."

Club record signing Steve Mounie is back in contention after missing the last four games due to a heel injury, but fellow striker Collin Quaner (calf) is not ready and midfielder Philip Billing could be out for up to 12 weeks if he requires surgery on his twisted ankle.

Wagner brushed aside speculation linking him with the vacancy at Leicester, who sacked Craig Shakespeare on Tuesday.

"It isn't a distraction," Wagner said. "It is nothing that bothers me. I am and will be the manager of this football club."

The former Borussia Dortmund coach, whose side play Liverpool at Anfield next weekend, was focused only on Mourinho's United and has no intention of trying to calm his players in the dressing room on Saturday.

"No. They should take all the excitement they have to play at home against an opponent like Manchester United," he added.

"This is exactly what you have to have. Be excited, be brave, go out and try your best with freedom and try and make everybody happy."