Liverpool are without Mohamed Salah and Roberto Firmino as they look to pull off one of the greatest Champions League shocks of all-time.
The Reds are 3-0 down heading into the second leg at Anfield, meaning nothing but a perfect performance will see the end of their European title hopes.
Liverpool are desperate to end the season with a trophy and have also taken the Premier League title race to the last day of the season.
But for Champions League glory they have to mute Lionel Messi; something almost no team in history has ever been able to do.
While the action is on subscription TV only in the UK, there is a way you can see the match for free...
How can I watch it on TV?
Liverpool vs Barcelona will be broadcast live on BT Sport 2, with coverage from 7:00pm BST.
The game is shown on BT TV channel 409 or in HD on 431.
The channel is number 528 for Virgin Media customers.
And Sky subscribers can find it on channel 414 or in HD on 868.
How can I stream Barcelona vs Liverpool?
If you are a BT Sport subscriber, you can live stream this crucial second leg fixture online on btsport.com , or alternatively on the BT Sport app on tablet or mobile devices.
You can also follow the latest action via Mirror Football’s live blog.
Can I watch it for free?
An EE phone plan will allow customers to catch all the action for FREE by signing up for a three-month trial.
You can text SPORT to 150 and follow the instructions, with the trail allowing you to watch all of the BT Sport channels via their app.
Casting to your television is also included, and the trial can be cancelled at any time by texting STOP SPORT to 150.
At the end of the trial, the services will cost £5 per month for the app and £10 per month for casting.
