My heart says that Belgium won't play Kevin de Bruyne as a wing-back. My brain says that it can't be Witsel, Dembele or Fellaini...

Weilong Liang: KDB at LWB surely recognising that Pavard is the weak link in #FRA, external particularly offensively. Another masterstroke by Martinez? Let's see

Martin Keown
Former England defender on BBC Radio 5 live

This could be the game of the tournament. I'm trying to work out what team Belgium will put out but Kevin de Bruyne has to play through the middle.

Mark Lawrenson
BBC football expert in Russia

Belgium were excellent against Brazil but I am worried that game might have been their performance of this World Cup. They just need to forget that win, as good as it was, and try to start again.

I just think Les Bleus might step things up here. As we have seen before when they have reached this stage of a major tournament, their success has a wider significance and their football team is seen as a symbol of a united France.

I think they will respond here too - and make it to Moscow next Sunday.

Lawro's prediction: 2-0

The major breaking news of the last few hours is the fact that Real Madrid forward Cristiano Ronaldo is set to join Juventus, becoming one of the four most expensive players of all time.

It is understood a deal worth £105m has been reached between the two clubs that will see the 33-year-old Portuguese end a nine-year stay at the Bernabeu.

Ronaldo won four Champions Leagues and two La Liga titles at Real.

"The time has come to open a new stage in my life, that's why I asked the club to accept transferring me," he said., external

Test your knowledge of the countries that have made it into the semi-finals of the World Cup.

Take the quiz here.

Image source, .

Fifa have put him on the left...

In the BBC studio, Alan Shearer and Gary Lineker are also wondering how this Belgium XI is going to line up.

"Would you put the best midfielder in the world at wing-back?" asks a quizzical Shearer.

We will have to wait and see...

Belgium have had nine different goalscorers in the 2018 World Cup (excluding own goals); only Italy in 2006 and France in 1982 (10 each) have had more in a single tournament.

Joe Wedgwood: 3-3-3-1 for Belgium? Or a 4-3-3 with Chadli at full back? Either way, make it 7pm already!!

Phil Hurrell: I thought Dembele was such a good player to leave out of the 1st XI, with that suspension it might be a blessing in disguise for Belgium

Kyle: Belgium will struggle to cope down the wing back positions and the pace of the French forward line will be too much for Belgium. I also expect Kante to have another big game and help give the French backline extra protection. 3-1 France

A good spot...

Nikhil S: Except for Axel Witsel, rest of the Belgian players are from the premier league

Image source, Getty Images

Possibly the most intriguing storyline of this semi-final comes off the pitch.

Thierry Henry was born near Paris and scored 53 goals in 123 appearances for France, winning the 1998 World Cup and Euro 2000.

But he is now plotting his home country's downfall as assistant manager of Belgium.

"Thierry Henry is really important for us," said defender Toby Alderweireld. "He tells us stories from his playing days and they inspire us.

"If he says something, it always turns out to be something helpful. His presence, his World Cup experience, is all a very positive influence."

Image source, Getty Images

France defender Raphael Varane: "Belgium are young, but they are maturing. We know it will be a tough match... Romelu Lukaku's physicality can trouble any defence. We can't leave him any space because he's a quality player.

"As for Eden [Hazard], I've already played against him when he was at Lille. He has great qualities and is a good dribbler. We can't give him any space either, so it is going to take a collective effort."

France forward Olivier Giroud hasn't had a single shot on target at this World Cup, while Antoine Griezmann has scored seven goals in his last six knockout stage matches in major tournaments (World Cup and Euros).

Has Roberto Martinez picked Kevin de Bruyne as a right wing-back here?

Beyond maverick. That's one guess. Or Toby Alderweireld as a right-back in a back four with Nacer Chadli as a left-back?

We'll have to wait and see.

Belgium midfielder Kevin de Bruyne: "When you reach the semi-finals of a World Cup you're never going to find ordinary opposition.

"We are on an equal footing with France, we will try and do everything we can physically and mentally. At the end, you do all you can to win and if they're better, they're better. That's football."

France make just one change too, and it's the one we expected. Out goes Corentin Tolisso, in comes old dependable Blaise Matuidi after a one-match ban.

France: Lloris; Pavard, Varane, Umtiti, Hernandez; Pogba, Matuidi, Kante; Griezmann, Giroud, Mbappe

Simon Gleave, head of sports analysis, Gracenote: "Belgium and Croatia have both reached the semi-finals as comparatively small nations. Since Uruguay shocked the world by winning the 1950 World Cup, no country with a population of less than 20 million has repeated their feat."

"There have been 20 semi-finalists (excluding this year) from comparatively small nations since Uruguay's 1950 World Cup win but only Hungary (1954), Sweden (1958), Czechoslovakia (1962) and the Netherlands (1974, 1978, 2010) have reached the World Cup final. They all lost in the final of course. Are Belgium or Croatia about to change this?"

No this is not a typo - Celtic's Champions League campaign is up and running.

They are playing in Armenia right now, and you can check out the latest here.