Liverpool manager Jurgen Klopp would not elaborate on whether he believed they could rescue their Europa League tie.
The Reds lost 3-0 at home to Atalanta in the quarter final first leg at Anfield on Thursday.
While Klopp knows his side are capable of big comebacks, he is also aware that Atalanta cannot be underestimated after what they pulled off this week.
He told reporters post-game: “I believe that it's not the moment to talk about that. What I can say already [is] I am not in the mood to think now about a game which is in a week's time when we have another one in between.
“What we definitely will [do is] try and for that we have to play really good. We try to win the game there and then we will see what we can do from there but it's now not the moment for having a big mouth and just telling them what we will do there.
“We have to play a really good game when we arrive, but this was probably a low point for us performance-wise tonight, I would say, for a long time, so I think it should be possible to play a little bit better – and if we can play a little bit better then we can play much better as well. But, first and foremost, Sunday. That is much more important now."
