Liverpool boss Jurgen Klopp says they'll "try" to win at Real Madrid on Wednesday night.
Liverpool, who were beaten by Real in last season's Champions League final, took a 2-0 lead against the Spanish side before losing 5-2 in the first leg at Anfield.
"I said three weeks ago, Madrid with their result are through to the next round, now we are here three weeks later and we know there's a game to play," said Klopp.
"If there's only a one percent chance, I would like to give it a try. We're here to play an extremely strong opponent and try to win the game.
"As difficult as it is, it's not likely, but possible. For that, we are here, we'll see where it leads us to."
Since the first leg, Liverpool beat Manchester United 7-0 only to lose 1-0 at relegation-battling Bournemouth in their next game, summing up what has been an inconsistent season.
They are sixth in the Premier League and have suffered seven of their eight top-flight defeats away from home.
"If we can surprise ourselves in a negative way we should be able to surprise ourselves in a positive way as well," added Klopp.
"But it's clear, we're not here telling Madrid, 'be careful, we're coming' - that's not the situation we are in."
