Darren Ferguson has told the Wrexham Leader that his side need to get back to winning ways after three away defeats.
"I am looking forward to Sunday - it is a big game.
"We were a lot better on Tuesday at Birmingham, we looked more solid and gave a good account of ourselves, and that was pleasing after two defeats. I thought it was going to go to penalties and 4-1 was not a true reflection.
"We coped with Birmingham and had played well enough to win it in normal time. We had two heavy defeats in the league but no-one is panicking. No-one was getting carried away when we had such a good start to the season so it works both ways.
"It is a young squad and you need experience. But the young lads have coped well."
Manager Denys Smith is hoping to have a few more players to choose from for Sunday.
"It is looking more positive, I will have players back and a different type of selection problem. The lads will be in for training tomorrow and we'll see who we've got. But I am hoping to be in a better state than the last three games when we have had a lot of injuries."
Meanwhile John Trewick, talking to BBC Hereford and Worcester, said that as Wrexham have injury concerns ahead of the game it is difficult to know who will play and in what formation.
"They have changed one or two things, so what the team will be against us, I'm not too sure," said the Hereford United coach.
"But, like any game, it's about what we do; it's our approach.
"It's about concentrating on our own performance, and, if we can get that right, no matter what the opposition do, we'll be ok."
There will be parking for Hereford Supporters travelling to the Racecourse at the approach to the Stadium on the grounds of the adjacent college - NEWI.