The Reds were drawn against the Romanian champions on Friday.
“For me it is too early [to talk about it] because we know we will play in February so we have plenty of time to prepare and learn about the other team,” said the Spaniard.
“It will be tough. Unirea won the league in their country and were in a tough group with Sevilla and Stuttgart – I have some friends in Sevilla so maybe I’ll be in touch with them.
“But it is important to have an option to win any trophy. The Europa League is different to the Champions League but there are some good teams in it.
“We have to progress if we can and then it is an opportunity to win a trophy and we will try to do it.”
