Kasper Schmeichel does well to drag the ball away from the onrushing Antoine Griezmann, a few nerves set a jangling by that, but the Dane knew what he was doing. An early Atleti goal would all but kill the tie, and the visitors are seeing plenty of early possession. 

Danny Mills
Ex-England defender on BBC Radio 5 live

It is going to be incredibly difficult but this is Leicester. This is the team that break all records and continue to surprise us. 

The atmosphere is electric and let's hope they give this crowd something to shout about.

Image source, Reuters

Eclectic? Or electric?

Both I think. Yannick Carrasco is playing up front for Atleti tonight and he has some early possession but is shut down. 

Ashley Tezoo: Come on Leicester! Just remember what Simeone did at the 1998 World Cup, if that isn't motivation I don't know what is! 

KoloKK: All of England is fit inside the King Power. The noise is eclectic. 

And we are away in Madrid!

Game on!

Brayo: I got a feeling, Atletico score one goal just one and City say goodbye 

Virag Thakkar: Sticking my neck out early but Leicester winning with 3-0 

Debajyoti Choudhury: Hoping Leicester beat Atletico tonight and go through - should be an awesome game

Dry ice now! A grey fox is unfurled in a banner, reading 'forever fearless.'

All the gimmicks are on show. Now we just need the performance to match. 

BBC Radio 5 live

You can hear full match commentary on BBC Radio 5 live and at the top of the page. Just press play.

Leicester: Schmeichel, Simpson, Morgan, Benalouane, Fuchs, Mahrez, Ndidi, Drinkwater, Albrighton, Okazaki, Vardy. Subs: Zieler, Chilwell, Musa, King, Amartey, Gray, Ulloa.

Atletico Madrid: Oblak, Juanfran, Savic, Godin, Filipe Luis, Saul, Gabi, Gimenez, Koke, Carrasco, Griezmann. Subs: Miguel Moya, Torres, Correa, Lucas, Gameiro, Thomas, Gaitan.

Referee: Gianluca Rocchi (Italy)

Real Madrid: Navas, Carvajal, Nacho, Sergio Ramos, Marcelo, Modric, Casemiro, Kroos, Isco, Benzema, Ronaldo. Subs: Casilla, Rodriguez, Kovacic, Lucas, Marco, Morata, Danilo.

Bayern Munich: Neuer, Lahm, Hummels, Boateng, Alaba, Robben, Vidal, Alonso, Thiago, Ribery, Lewandowski. Subs: Ulreich, Douglas Costa, Rafinha, Bernat, Muller, Coman, Kimmich.

Referee: Viktor Kassai (Hungary)

Glittery flags a fluttering, music pumping. This Atletico Madrid side have played in a few big games down the years, let's be honest. Will they be rocked by the King Power?

Almost time for kick-off in the King Power.

The place has seen some memorable nights in recent years - this could top the lot. 

BBC Leicester Sport

Image source, BBC Sport

Like Leicester's journey in the Champions League, there are plenty of smaller teams who have been competing in the 2017 FA People's Cup.

See who has been in action in the semi-finals highlights programme - and those who have managed to step up when it matters!

Phil McNulty
BBC Sport chief football writer at The King Power Stadium

A thunderous roar sweeps around The King Power Stadium as a group of Leicester City players finish their warm-up. When The Foxes reached the Champions League, many saw qualifying for the knockout stage as success - now can they go even deeper into Europe's elite tournament?

Gareth Bale is injured tonight of course

Image source, PA

These two sides met in the 1997 Uefa Cup, with Ian Marshall putting the Foxes ahead at the Calderon before Juninho scored in both legs to push the Spanish side through.

Can the hosts get revenge tonight?

Matthew Thorne: As a Foxes fan, i think it ends tonight. It'd be a dream to make it through, but who better to prove dreams do come true?

Dennis Ethan: Got a feeling Leicester City will qualify tonight #BackTheBrits, external

Image source, EPA

Nothing quite beats soaking up the Spanish sun - and it is even better when you are there to watch your favourite football team.

But will the thousands of Bayern Munich fans hanging around Madrid today be going home in disappointment? Their team trails 2-1 after the first leg in Germany.

Real Madrid did little in the first half as Arturo Vidal put Bayern ahead, but Cristiano Ronaldo turned on the magic after the break to put the holders in command.

But there is some big team news for both teams. Madrid are without the injured Gareth Bale, while Bayern welcome back Robert Lewandowski...

Image source, Getty Images