Although atlanta has the potential to trouble Liverpool and be able to beat Liverpool. but I think Liverpool will have no significant obstacles and can easily advance to the semifinals.
Atalanta in its own domestic league is still quite overwhelmed in getting its best position at the moment, so I don't think that Atalanta will be able to trouble Liverpool in the Europa League this season because Liverpool is a very strong team in the Premier League and has also shown its strength in the Europa League this season. This means that Atalanta may be just an ordinary opponent for Liverpool in the Europa League quarter-final match.