John McCarthy:, external "Colombia as a Team will break Brazilian hearts. This will be epic."

Sam Robson:, external "Immense pressure on Brazil. Absolutely none on Colombia. I see the hosts bowing out tonight."

Mark Marriott:, external "From European tactical nous to South American flair, this is what makes the World Cup fantastic."

'O Unfading Glory!'

That's the opening line of Colombia's anthem and there has been nothing fading about their football so far in this tournament. Can they keep that swagger going when they are up against 200 million Brazilians?

Image source, AP

The Castelao is a cauldron as the players emerge. Brazil in their now familiar arm-in-arm link up as they come out. The anthem is always spellbinding, it shall be again in a stadium which is 94% yellow this evening...

Image source, AFP

Pele:, external "Whenever the Selecao play I feel the same joy and excitement when I used to play for my country. This team has all my love and support. Vai Brasil!"

Ronaldinho:, external "Good luck, Brazil! Let's attack! Let's play our joyful football. This has always been our motto!"

Faustino Asprilla:, external "Today is a glorious day for all Colombians, let's enjoy football the way it should be."

Mo from Manchester, via text: "All these people that are claiming Brazil will win because they have so many good players and Colombia only have a few. Have you not been watching the World Cup? A few good players and a confident and well managed team can beat anyone. 3-1 Colombia."

Image source, AP

Givanildo Vieira de Souza - or Hulk - has not had the best of tournaments thus far. But he remains a popular player i the stands. Is tonight the night Hulk becomes incredible?

Image source, AFP

Here they come then. All lined up in the tunnel, with both of Brazil's reserve keepers fully kitted up with fingers taped and all sorts. It will be some game if they go through all three...

Jeremy Brett:, external "Will James Rodriguez continue his brilliant form? If so, a real upset may be on the cards."

Adam Haxell:, external "Lots of Colombia shirts around London today. I see them having to stay up late but being disappointed."

Henry Mboloma Mulola:, external "Scolari making a good decision dropping Alves, Maicon more disciplined."

Tweet #bbcworldcup, , externalpost a comment on the BBC Sport Facebook page,, externalGoogle+ page, external or text (UK only) 81111.

Image source, Phil Wye

BBC Radio 5live producer Phil Wye:, external "A Brazilian shopping centre before Brazil kick-off in a home World Cup Q/F. Tumbleweed."

Kevin Kilbane
BBC Radio 5 live

"I saw Colombia's group games against Greece and Ivory Coast and they were so good.

"I think their central midfielder Carlos Sanchez, just sitting in front of Mario Yepes, has been excellent in not allowing Yepes to be isolated. And Sanchez's role has also freed up space for James Rodriguez to be that creative spark. They also have the pace of Juan Cuadrado, and in Teofilo Gutierrez and Jackson Martinez have options up front.

"If Colombia play as well as they have been they will cause problems but I think Brazil will just find a way to win this game. On home soil, up in Fortaleza, there will be an incredible atmosphere."

Left-back Marcelo has just been round the entire starting XI to give them each a hug and a quiet word in the ear. Too much emotion? Or is that the stoic Briton in me talking?

You don't get this in League Two...

BBC Radio 5 live

BBC Radio 5 live will have full match commentary of the 21:00 BST kick-off between Brazil and Colombia.

You can also listen to BBC Radio 5 live's commentary by clicking on the Live Coverage tab at the top of this page.

And later, you can watch highlights of Brazil v Colombia and the earlier game between France and Germany on Match of the Day from 23:40 on BBC One.

How to follow the World Cup across BBC TV, radio and online.

Colombia: Ospina, Zuniga, Zapata, Yepes, Armero, Guarin, Sanchez Moreno, Cuadrado, Rodriguez, Ibarbo, Gutierrez. Subs: Vargas, Arias, Carbonero, Aguilar, Mejia, Balanta, Bacca, Ramos, Quintero, Martinez, Valdes, Mondragon.

Brazil: Julio Cesar, Maicon, Thiago Silva, Luiz, Marcelo, Fernandinho, Paulinho, Oscar, Neymar, Hulk, Fred. Subs: Jefferson, Dani Alves, Dante, Maxwell, Henrique, Ramires, Hernanes, Willian, Bernard, Jo, Victor.

BBC Radio 5 live

South American football expert Tim Vickery: "Colombia played with two up front against Uruguay but Victor Ibarbo will be be the third forward today. His versatility and physical capacity will help in tracking back to defend Brazil's tactic of exposing Mario Yepes, who is 38.

"Carlos Sanchez is the man-marker in Colombia's midfield - I saw him mark Lionel Messi wonderfully well against Argentina in the Copa America. I will be very interested to see what Sanchez does with Neymar. Sanchez usually sits in front of Yepes. But if Neymar goes out left does he follow?

"Camilo Aguilar is more of a mixed midfielder, and I am surprised Freddy Guarin will replace him today. Maybe Aguilar is not 100% fit because has had a wonderful tournament."

Shaun via text: "Colombia to beat Brazil tonight, James Rodriguez to add to his goal talent. Such a delight to watch this good Colombian team."

Louis in Eastbourne, via text: "Think a tight game again, but go for 1-0 Colombia. Play more like a team than Brazil."

Image source, AFP

Colombian President Juan Manuel Santos has given government workers Friday afternoon off to watch the national team play Brazil in the quarter-finals of the football World Cup.

The president will fly to Brazil to watch the match played in Fortaleza.

The progress of Colombia to the quarter-finals has sent the country into a state of national euphoria.

But after a spike in domestic violence after Colombia's first win, the sale of alcohol will be banned on match day.

Big embraces in the tunnel, David Luiz emerging like he had won the World Cup. Arms wide stretched, palms to the sky. It's only the warm-up...

BBC Sport Chief Football Writer Phil McNulty in Fortaleza

"Lots of talk here in Brazil about how emotional Brazil's players have been before and after matches and there was several minutes of hugging and embracing in the tunnel even before they came out to warm up. It is certainly eye-catching but is it also a sign of the pressure they are under?"

BBC Radio 5 live

Former Netherlands international Edgar Davids: "Brazil are under a lot of pressure and I have seen that a lot of their players can't handle that. I am not convinced by them.

"When you see Colombia play, they enjoy their football and play open with a lot of energy. With Brazil I see 11 individuals, which does not make a team.

"We are used to Brazil playing with that samba rhythm, but the football I have seen from Colombia has been more entertaining."