The Terriers host the Red Devils at the John Smith’s Stadium on Sunday morning (1am AEDT).

It has been a solid start for the west Yorkshire club in the top flight with two wins, three draws and three losses.

Mooy said his team will go out to try and beat Jose Mourinho’s men, who are undefeated in the Premier League so far.

“That's the beauty of football – anything can happen,” the midfielder said.

“They are obviously a massive club and it's a big game but we've got to go into it believing in ourselves and trying our best.

"Hopefully we can get a good result which would be amazing - of course it doesn't happen every week but sometimes you do see the smaller teams beating the bigger ones.

“But to do it we'll have to be at our very best - we have to believe we can get a good result; every player needs to do their jobs and hopefully we can perform well as a team.
 

"Manchester United are a good team, they'll be right up for it and will want the three points as well.

“They will be very difficult to play against but we have to be at our very best and have a big performance. Little mistakes can prove costly in this division so we have to eradicate them but we also have to be more threatening in the final third as well.

“It's a special game for everyone but every game is a massive one for us – every one is important but when you play the big clubs then it is always very nice.”

Mooy idolised former Manchester United star David Beckham as a kid growing up in western Sydney. The 27-year-old said he made the move to the UK to face clubs like United and the best players in the world.

“This is why I came to England – to push and test myself and see how far I can go - if I didn't want to do that then I would have just stayed in Australia,” he said.

“These are the games you want to play in - when you're younger you always dream big and it's taken a long time to get here but I never gave up and now I have the opportunity to prove myself so I am very proud.

“Against the better teams like Tottenham you learn just by being on the same pitch and I just want to keep picking up stuff and becoming a better player because of it.

"We have to show we have learnt something from that game and made some steps forward – we need to try to make it a more competitive game and not as one-sided as that one.

“But you come up against good players all the time in this league and just have to try to concentrate on your own performance.



"Manchester United is definitely one of the biggest clubs in the world – you always saw the big names in Australian football like Harry Kewell and Mark Viduka and knew when they were playing on TV.

"I watched every team growing up and didn't just pick one to watch and follow – I just tried to watch as much as I could and the Premier League was the main league that was on all the time in Australia.”

The Socceroo admitted the mood in the Huddersfield Town dressing room was somewhat down after the 2-0 loss to Swansea City last weekend.

"It was a bit down at the start of the week but we've got over it now and looking forward to the game tomorrow – it should be an exciting match and hopefully we can put in a good performance,” Mooy said.

"Of course every player wants to start every game but it's ultimately the manager's choice and I am 100 per cent behind him and when I do play will just try my best.

"We have to go into every game believing we can get a good result otherwise there is no point in us being there.”