Alison Roberts
Portugal Correspondent, Lisbon

Image source, Getty Images

Rabat is the closest foreign capital to Lisbon and bilateral relations are good.

But commentators here joke that a win for the national team would avenge the battle of Alcacer-Quibir (El-Ksar el Kebir, in what is now northern Morocco). In 1578, the flower of Portugal's nobility was massacred in a doomed attempt by their young king, Sebastian, to regain lost territory.

Since he died without an heir, his uncle, Philip II of Spain, seized the Portuguese throne and the country lost its independence, only to be restored in 1640. But Sebastian’s body was never found and the belief spread in the meantime that Dom Sebastiao would one day emerge from the mists to save Portugal.

It's a metaphor still used today.

Cristiano Ronaldo was long seen as the Dom Sebastiao who, with his record goalscoring feats, would save Portugal - but the mantle now seems to have passed to young pretender Goncalo Ramos.

Image source, Getty Images

Just to Watch: The greatest moment in Morocco's football history and they can really push on to be the first African team to reach the semi- finals.

Pat Nevin
Former Scotland winger on BBC Radio 5 Live

Image source, Rex Features

The 6-1 win over Switzerland was like watching phenomenal players who haven't been able to shine anywhere near their best suddenly glow.

We've all played in teams where there has been a star and everything has to go through the star, but it does diminish some players because they cannot glow. It's not to say don't have Cristiano Ronaldo, but use him when it's useful.

Morocco football journalist Amine el Amri, speaking to the World Football in Qatar podcast:

"I have slept very little since the Spain win because the adrenaline has kicked in every night. It was a once in a lifetime experience. We had a reality check four years ago against Portugal [lost 1-0 at the 2018 World Cup].

"We made history in 1986 by beating Portugal [Morocco's first World Cup win] and we are ready to make another history against Portugal.

"It's going to be a bigger challenge than against Spain but we're up to it."

Chris Bevan
BBC Sport at Al Thumama Stadium

Image source, BBC Sport

He may be on the bench but Cristiano Ronaldo is still the hero of most of the Portugal fans I just spoke to.

Do they want to see him get on the pitch later? "Definitely!"

Oh my goodness. There's still 50-odd minutes until kick-off and there are already thousands of Morocco fans in the ground making one heck of a din. They're waving souvenir World Cups, flags and scarves.

They're here for a good time.

John Bennett
BBC World Service Sport

The atmosphere will be something else. Morocco fans bring a different level of noise. I've been to 10 major tournaments, including one in North Africa and I've never heard whistling as loud as the game against Spain. I'm back home now but my ears only just stopped ringing!

Pat Nevin
Former Scotland winger on World Football in Qatar podcast

Image source, Reuters

Morocco's victory over Spain in the last 16 was magical. The vast majority of the people in the ground were Morocco supporters and honestly I want to write a book about that one game.

The effort every single player put in was extraordinary. The dinked Panenka penalty will stay as one of the great moments in World Cup football.

Chris Bevan
BBC Sport at Al Thumama Stadium

Image source, BBC Sport

With red and green being the prominent colours on both teams' flags, at first glance outside Al Thumama Stadium it is hard to tell exactly who supports who.

Peer a little closer, however, and you see just how many fans' flags have a green star on them... although some people seem to be a bit confused, and are waving both.

Image source, BBC Sport

BBC World Service

Sportsworld on BBC World Service will have build-up, interviews and analysis from this quarter-final with reporters in Casablanca and Doha.

The programme has just started.

Piers Edwards
BBC Africa Sport

Who'd have thought Ronaldo being on the subs bench would be a bad thing for their opponents? But given the way they played without him verus Switzerland, Morocco might have wished he'd started this one.

Image source, Reuters

This quarter-final is taking place at the Al Thumama Stadium - a ground Morocco's fans know well having seen their side defeat both Belgium and Canada at the venue.

Will the Atlas Lions make it a hat-trick of wins at the ground?

It's the eighth and final time the stadium has been used at this World Cup. It has witnessed 23 goals in the seven previous games - including all four of Morocco's goals at the tournament.

Arthur Tirana: When it comes to the keepers, Bono has The Edge.

Image source, Getty Images

Image source, Getty Images

Which Bono is the best?

Thumbs up for the keeper who is winning his 50th cap for Morocco.

Down if it's the 'Sunday Bloody Sunday' bloke.

Yassine Bounou, also know as Bono, starts in goal for Morocco after his penalty heroics against Spain.

Moorsey: Cristiano Ronaldo being dropped...does that mean he will be looking for another nation to play for?

Happy Cristiano Ronaldo is not starting again, Portugal fans?

He was a substitute in his side's last match - a 6-1 win over Switzerland - with Goncalo Ramos starting in his place once again.

Image source, FIFA

Shamoon Hafez
BBC Sport at Al Thumama Stadium

Morocco have suffered a huge double blow with the news that West Ham centre-back Nayef Aguerd and Bayern Munich full-back Noussair Mazraoui are both out injured.

In come Jawad El Yamiq and Yahya Attiat-Allah into the side.

Morocco XI: Bounou, Hakimi, El Yamiq, Saiss, Attiat-Allah, Ounahi, Amrabat, Amallah, Ziyech, Boufal, En-Nesyri.

Image source, BBC Sport

The big team news for Portugal is that star man Cristiano Ronaldo is on the bench again, so Goncalo Ramos leads the line again.

There is no place in the starting XI for Manchester City full-back Joao Cancelo either.

There is one change from the side that thrashed Switzerland 6-1 in the round of 16, with Wolves midfielder Ruben Neves coming in for William Carvalho.

Portugal XI: Costa, Dalot, Pepe, Dias, Guerreiro, Otavio, Neves, B Silva, Fernandes, Felix, Ramos.

Image source, BBC Sport

We already know Cristiano Ronaldo is not starting. Let's get the full team news...

Image source, Rex Features

A reminder that the winners of this game face England or France in the semi-finals on Wednesday (19:00 GMT).

Imagine the scenes in Paris if it is France-Morocco for a place in the final?

Hundreds of thousands of Moroccans live in France and thousands took to the streets of the capital, external waving flags, cheering and dancing in the cold after the last 16 win over Spain.