Liverpool will need to pull off a miraculous comeback when they face Barcelona in their Champions League semi-final second leg at Anfield on Tuesday night.
Barca won the first leg 3-0 thanks to Luis Suarez's opener and a second half brace from Lionel Messi.
The Reds know a second leg comeback will be even harder given that both Roberto Firmino and Mohamed Salah have been ruled out for the game.
However, all hope is not lost for Liverpool.
They may be under-strength, but Jurgen Klopp will be aiming to produce another memorable Champions League night at Anfield.
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And Liverpool fans are doing their best to try and make sure that happens.
Football fans in the past have deployed sneaky tactics of keeping opposition players up at night by setting off fireworks and making loud noises outside their hotels.
Ajax supporters set off fireworks outside of Juventus' hotel before their Champions League quarter-final first leg last month.
And now Liverpool fans have done the same outside of Barcelona's hotel.
Videos have emerged of fireworks being set off outside the Hilton hotel in Liverpool, where Barcelona's players arrived yesterday.
Watch the videos below:
According to the Liverpool Echo, there have been reports of people hearing bangs in the area as early as 2am and some said they could still hear them at 4.30am.
It is unknown whether Barcelona's players were affected but Liverpool fans will be hoping they show signs of tiredness at Anfield later tonight.
Meanwhile, Jurgen Klopp has insisted that Liverpool still have a chance of progressing to the final in Madrid.
The Liverpool manager said, per the Guardian: “We want to celebrate the Champions League campaign, either with a proper finish or another goal. That is the plan: just try. If we can do it, wonderful. If not, then fail in the most beautiful way.
"I had these games quite a few times. In my experience, it’s not that before the game you think: ‘Yes, I believe we will do it.’ But I’m completely fine with the chance. Less than them, but we have at least a chance.
“They are halfway through, that’s the absolute truth, but as long as it’s not decided that is the competition. I don’t tell my missus: ‘Wait for me at home, we will have a party after the game because we’ll win it.’
“We have to work for it. We believe in the chance, we believe in the opportunity, not in the result."