Matteo Guendouzi has got a huge mop of hair but he doesn't get much of it on a good delivery into the Celtic penalty area, with his header from a promising position sliding away, miles off target.

James McFadden
Former Scotland forward on BBC Sportsound

There's not enough power on that from Kyogo to trouble the keeper.

It's better from Celtic, but they need to be mindful of the Lazio counter.

Now the home goalkeeper makes a simple stop as Kyogo gets a weak shot on target from 18 yards.

James Forrest bustles forward but is squeezed out and suddenly the pale blue shirts of Lazio are streaming in the other direction.

Gustav Isaksen has a pop and it's a comfortable take for Joe Hart.

James McFadden
Former Scotland forward on BBC Sportsound

I thought it would be Forrest on the right and Yang on the left, but it's not. It's the other way around.

Richard Winton
BBC Scotland at Stadio Olimpico, Rome

Mercifully, the chucking of missiles at each other - which suddenly increased in intensity just prior to kick off - seems to have abated. But the acrid smell of smoke is hanging in the air. Suspect that's not the last we'll be hearing of that.

Image source, SNS

And away we go.

Image source, SNS

Joe Hart becomes the first English goalkeeper to make 50 European Cup/Champions League appearances.

Has he really played more games than Ray Clemence, who picked up three European Cups?!

Image source, SNS

Celtic have never won in Italy in the European Cup or Champions League (D2 L8), failing to score in eight games of their 10 games.

Their overall record against Italian clubs is: W7 D8 L15.

The teams are out, the anthem is blaring out.

Celtic in their all black kit.

Image source, SNS

Richard Winton
BBC Scotland at Stadio Olimpico, Rome

The Celtic fans are, obviously, vastly outnumbered but they are having a right good go at making themselves heard amid the cacophonous din inside this place.

That said, there's been a wee bit of naughtiness going on with some pyro being launched back and forth. The Lazio lot seemed to start it, but the visiting supporters have sparked up one or two of their own too.

James McFadden
Former Scotland forward on BBC Sportsound

You want Paulo Bernardo going forward, but he needs to have discipline as well.

Lazio look like they've got a strong midfield.

Image source, SNS

Neil Lennon
Former Celtic manager on TNT Sports

With Maeda and Palma suspended, Forrest comes in.

Brendan could've gone for Mikey Johnson, but James Forrest is a very experienced player, and actually scored in this fixture four years ago, so I think Brendan has gone for that extra experience since it's a must-win game.

Richard Winton
BBC Scotland at Stadio Olimpico, Rome

Image source, BBC Sport

Rome is, undoubtedly, a football city. Two grand old clubs, and one big rivalry. The sprawl of the city means the fervour is not necessarily concentrated in particular pockets but almost every street you venture into is tagged with a sticker, banner or some such paraphenalia of either Lazio or AS Roma.

In the wake of that loss at Salernitana, Maurizio Sarri said that if he felt he was the problem for the dip in league form, he would step down.

Sarri steered Lazio to second place last season, albeit a long way behind winners Napoli, and Pedro insists the squad are right behind their manager.

"He is a special coach, he is a perfectionist and when you are a perfectionist and you don’t get results it is frustrating," said the Spanish forward.

"He has helped raise the bar for Lazio. When you lose one or two games it is tough and in this moment we need to do better and improve our ranking in Serie A.

"He is not the problem. If we win we will hug him 100 per cent."

Image source, Getty Images

'Inferno o riscatto' is the Gazzetta dello Sport headline for Lazio.

That's a very dramatic 'Hell or redemption'.

Manager Maurizio Sarri is under some serious pressure, with just five wins from 13 in Serie A.

On Saturday, they were beaten away to bottom of the table Salernitana despite taking the lead.

Image source, BBC Sport

If you want to hear more from James McFadden, Sportsound is on air now and will have live commentary from Stadio Olimpico from Liam McLeod and the former Scotland hero.

You can follow all the build-up, action and reaction by hitting the play button above.

James McFadden
Former Scotland forward on BBC Sportsound

The most important thing for Celtic is they need to find a way to get these wins.

You can't say every year they can compete, because they're not competing, they're not winning the games they need to win.

It's the same old story, at some point they need to find a way to win or this will continue.

Celtic's overall record away from home in the Champions League does not make great reading, with just two wins on their travels, the most recent one coming at Anderlecht in 2017.

There has been just one clean sheet in their 38 away games in this competition, with 95 goals conceded.

Celtic have endured a torrid time on the road in this campaign.

There were two red cards in a 2-0 defeat at Feyenoord and another sending off in the first half of a 6-0 hammering away to Atletico Madrid.

"We learned that, over the course of the competition, when we are 11 v 11, we can really compete," said manager Brendan Rodgers yesterday. "In the two away games, we have been down to nine men and 10 men and, at this level, that's a big ask.

"So it will be about keeping our players on the field and playing to the level that we can - and that we have shown - and hopefully getting the breaks in the game.

"I think we can get the result we want, but we will have to work really, really hard."