Former Manchester United defender Phil Neville
BBC Radio 5 live

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"I think it's going to be one hell of a game but I wouldn't be surprised if it was a tight 0-0 or 1-1 draw. In my experience semi-finals are more nerve-wracking than actual finals. You don't want to make a slip-up, and these first leg matches are always cagey affairs.

"Juventus is one of the toughest places to play in football. I'd put it up alongside Anfield. Playing here for Manchester United was the biggest lesson we got in terms of how to play European football. We went to Turin thinking we were a good young team and found we were out of our depth. They were an intimidating side. Paulo Montero, you feel he probably would have trampled on his grandma to win the ball. That Juve side was the standard-bearer for the United team that went on to win in 1999."

Gianluigi Buffon is still the most expensive goalkeeper of all time. Some effort 14 years on from his mega money move from Parma.

We will see two sides captained by goalkeepers tonight.

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These two sides also met in the 1998 final, where Predrag Mijatovic's neat turn and finish ended Real's 32-year wait for their seventh European title.

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Tonight we're asking you - who is the best player to appear in the Champions League without winning it? You can also take part in our vote at the top of this page.

Bob Singleton: Buffon... but that may yet change if results over the next few weeks (starting with tonight) go his way. He's won everything else he could have won, and has for 20 odd years been one of the greatest goalkeepers in the world.

Andy Mayoo: Did Patrick Vieira ever win it? He was mustard! [He didn't Andy, no]

Ezekiel Godday Ogbole: Gianfranco Zola.

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When you manage Real Madrid you're never far away from the sack. Carlo Ancelotti finally brought the club their 10th European Cup last season but he didn't win the league and he may not win the league again this season.

Real are two points behind Barca with three games to go. Does Ancelotti need another Champions League win to keep his job?

BBC Radio 5 live

Tonight's match is also live on BBC Radio 5 live.

Build-up is starting now, and then join John Murray and Pat Nevin for full match commentary and insight from Turin. Tune in at 19:45 BST online, on the radio or at the top of this page. Just press play.

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Tonight we're asking you - who is the best player to appear in the Champions League without winning it? You can also take part in our vote at the top of this page.

Jose: Wonder why Brazilian legend Romario isn't listed here? Played in Europe for seven years.

Jason: Dennis Bergkamp given that he travelled everywhere on a milk float.

Jamie Smart: The Brazilian Ronaldo. Arguably the greatest number nine of all time!

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Gianluigi Buffon won the World Cup in 2006 and has six Serie A winners' medals, but has only reached the Champions League final once - losing to AC Milan in 2003.

"It is a strange thing because I have won virtually everything but the one thing I haven't won is the Champions League, although I have got very close, losing a final on penalties," he told Football Focus.

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"But I think that life is very fair and you get what you deserve. I have not yet finished my career, even though I am pretty close to the end. I think that if it is my destiny and if I have earned it, then I will win it.

"There are at least three teams ahead of us in terms of experience at the international level and the players that they have. But I do believe that we are a team on the way up. As a group we have been playing together for a long time; every now and then a new player has come in to improve the team and that is why I think we can do well.

"In fact I am convinced of this and I think that we are able to compete with any other team. But there is a big difference between saying this and thinking that we can win the Champions League."

Former Real Madrid goalkeeper Bodo Illgner
Sport Today on BBC World Service

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"In the first half of the season Gareth Bale was accused of being selfish and not passing the ball to other team members who were in better positions, like he was trying to score by himself. Last season he showed what he is capable of in the Copa del Rey final and the Champions League final but in 2015 he has got injuries again.

"Bale is a player who needs 100% fitness because that's his very big strength. If he's not 100% fit it's a very big issue for him. But he made a very good impression in the last match at Sevilla and I think he will have a good performance tonight."

Illgner, 48, won the Champions League as Real's goalkeeper in 1998 and 2000 and the World Cup with Germany in 1990.

Juventus clinched their fourth straight Serie A title this weekend after a hard-fought victory over Sampdoria secured courtesy of Arturo Vidal's first-half header.

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The Turin club needed only a point at the Luigi Ferraris Stadium to win their 31st Scudetto but got all three.

Chile midfielder Vidal scored the decisive goal when he met Stephan Lichtsteiner's cross to head in.

It handed Juve boss Massimiliano Allegri the title in his first season in charge of the club.

Ben: Ronaldo, 2 time Ballon d'or winner and world cup hero. No one better never to win champions league

Rob Price: Has to be Buffon. The worlds greatest goalkeeper for the past 15 years or so

Zubin: Casemiro. He's been brilliant this season at Porto. Even with the most successful tackles in UCL.

Fraser: Kevin Muscat - He was a world class defender & tackler.

There could be a few issues with Muscat - apart from the fact he did not appear in the Champions League.

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Real Madrid don't lose too many big games in Europe - but they haven't fared well against Italian sides at this stage.

Real have been eliminated in their last three European semi-finals against Italian sides - Juventus 2003, Torino 1992 and AC Milan 1989.

It's four changes for Juventus from the weekend. Back come Patrice Evra, Arturo Vidal, Alvaro Morata and Giorgio Chiellini.

Juventus: Buffon, Lichtsteiner, Bonucci, Chiellini, Evra, Marchisio, Pirlo, Sturaro, Vidal, Tevez, Morata.

Former Real Madrid goalkeeper Bodo Illgner
Sport Today on BBC World Service

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"Juventus have a very strong side with players who have played together for a long time now, although they have a new coach. It's a very solid team. It's hard to beat them, very hard to score against them.

"Just look at the players - Arturo Vidal is excellent, Andrea Pirlo is an extraordinary midfielder even though he is getting older. Gianluigi Buffon is getting older too but he's still a very good goalkeeper with a great CV. Up front they have Carlos Tevez, and the two Spaniards Alvaro Morata and Fernando Llorente. They have very good players outside on the wings like Stephan Lichtsteiner, then they have the Italian defence - Leonardo Bonucci and Andrea Barzagli."

Gigi Buffon - 20 years at the top of the game, no Champions League medal in the cabinet.

He must surely be in the running to be the best player of his era to never win the trophy.

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But who truly deserves that accolade?

We've put together a shortlist of names, but we want to hear from you. One caveat - the player must have played in the Champions League without success. So no votes for Le Tissier, Dion Dublin or Jamie Cureton please.

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Have your say by voting at the top of this page (click the 'vote' tab on mobiles) or get in touch at #bbcfootball, external, pop on to the BBC Sport Facebook page, external or BBC Sport's Google+ area., external

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See full voting terms and conditions here.

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My favourite national anthem singer of all time. And one hell of a goalkeeper.

Gianluigi Buffon has been Juventus' goalkeeper since 2001, amassing many medals and big wins, but he's never won the Champions League.

At 37, this could be his last chance.

It has been 12 long years since Juventus reached the last four of the Champions League, but fans of the Italians may well remember that in 2003 they faced Real Madrid at the same stage.

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Goals from Ronaldo and Roberto Carlos gave the Spanish side a 2-1 first-leg lead at the Bernabeu, but Juve roared back to win 3-1 in Turin.

David Trezeguet, Alex Del Piero and Pavel Nedved were on target. A decent trio of players!

The two goalkeepers from that night are still first choice. Gigi Buffon for Juve, Iker Casillas for Real.

Real Madrid make one change from the side which beat Sevilla at the weekend as Gareth Bale comes back in to replace Javier Hernandez. Sergio Ramos continues in midfield.

Real Madrid: Casillas, Carvajal, Varane, Ramos, Marcelo, Pepe, Kroos, Isco, James, Bale, Ronaldo

Seventy-seven teams from 53 nations began on the road to Berlin last summer - now there are four still standing.

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In 32 days' time we will know which side are the kings of Europe for another season.

Will Real Madrid become the first team in 25 years to retain the European Cup?

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Or will rivals Barcelona add their fifth title to the Nou Camp cabinet?

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Will it be Bayern Munich for the second time in three years?

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Or perhaps Juventus will strike a blow for Italy and take their third title?

Tonight the Old Lady host Real in the first leg of a gripping semi-final. Who will take the early initiative?