Favre said that he has been in the same position that Hamburg find themselves in, which is why he wants a professional display from his players in the game.
"To be honest, I'm only really taking each game as it comes," he told Bundesliga.com.
"There's not much point bothering about other things. We're doing just fine concentrating on the game against Hamburg.
"We know [their] situation well from our own experiences. That's why we know that it'll be a tough game against Hamburg."
Gladbach would move back into sixth place with a win on Sunday.