Chile comfortably qualified from their group after victories in the first two matches.

An opening 3-1 win over Australia was followed by a hugely impressive 2-0 victory to knock out world champions Spain.

They were consigned to a second-round meeting with Brazil after a 2-0 defeat by group winners the Netherlands.

Brazil topped Group A with two wins and a draw from their three matches.

They came from behind to beat Croatia 3-1 unconvincingly in their World Cup opener before a disappointing 0-0 draw with fellow qualifiers Mexico.

With work still to do to qualify, Brazil thrashed Cameroon 4-1 to ensure top spot.

This is far from a foregone conclusion.

Brazil may have qualified from the group stages unbeaten but a draw against Mexico showed they are not infallible.

Chile have impressed in the tournament so far and have shown enough attacking flair to suggest the Selecao have their hands full.

Let's have a look how the two sides qualified for the second round……

Anyway it's high time you got involved. With just 16 teams left in the tournament, why not have another go at making some predictions?

I want to hear your picks for the World Cup winner and the tournament top scorer. I'll start you off. Winner: Colombia. Top scorer: Thomas Muller.

You know the drill. Tweet #bbcworldcup,, external text 81111 (UK users only), post on the BBC Sport Facebook page, external or Google +., external

Image source, Getty Images

Shortly after the World Cup draw was made in December, Brazil coach Luiz Felipe Scolari named the opposition he wished to avoid should his men reach the last 16.

"I hope Chile don't qualify," said Scolari. "I'd rather play any of the others. They're a pain to play against. They're well organised and intelligent. It's better to face a European team."

Well tough luck Luiz, you've got them. First battle won for Chile perhaps?

Image source, Getty Images

BBC Radio 5 live

Mark Pougatch presents build-up to the game on BBC Radio 5 live from 16:30 BST, with live commentary from John Murray, Alan Green and Kevin Kilbane from 17:00.

You can listen via radio and online at the top of this page, click on the 'Live Coverage' tab.

Brazil may have lifted the World Cup trophy five times before but, for many of their supporters, it is the one that got away that is still seen as the defining moment in their history.

A final loss to Uruguay in 1950 - the last time Brazil hosted the tournament - is still considered a national tragedy and even has its own word, Maracanazo, loosely translated as "the Maracana Blow".

Now is their chance to exorcise those ghosts.

A host nation demands success. Anything but a record sixth World Cup for Brazil will be deemed a failure.

Former world champions Spain, Italy and England are just three of the 16 nations already sent packing from a tournament that has thrilled, shocked and entertained.

A group-stage record of 136 goals have been scored but that is merely an aperitif for what is in store next.

The wheat has been separated from the chaff as knockout football begins. No second chances, this is head-to-head, winner-takes-all football.

This is where the World Cup really gets serious.

Image source, Getty Images

Hello and welcome to a humdinger of a live text as Brazil play Chile for a place in the World Cup quarter-finals.

Chile aren't just playing against the host nation and a partisan 57,400 crowd in the Estadio Mineirao. If they want to reach the last eight for just the second time, they will have to rewrite history.

Three World Cup meetings with Brazil have ended in three defeats for La Roja, a semi-final loss in 1962 and two second-round defeats, in 1998 and 2010.

In fact Chile have only beaten Brazil on four occasions - the last time in 2000.

Garrincha proved Chile's tormentor in 1962.

Image source, Getty Images

Ronaldo helped shoot down La Roja in 1998.

Image source, Getty Images

While Robinho and Kaka were at the heart of their downfall four years ago.

Image source, Getty Images

Can Brazil continue their Chilean dominance or is it time for their South American rivals to bite back and shatter the dreams of a nation? Sit back and enjoy - the next few hours promise to be a footballing feast.

Brazil: Julio Cesar, Alves, Silva, Luiz, Fernandinho, Marcelo, Hulk, Fred, Neymar, Oscar, Gustavo.

Chile: Bravo, Mena, Isla, Silva, Sanchez, Vidal, Vargas, Medel, Jara, Aranguiz, Dias.

Brazil defender David Luiz is nursing a slight back problem suffered in training but he is expected to be fit.

Fernandinho is pushing for a starting role in midfield, although Luiz Felipe Scolari said earlier in the week that he has "blind faith" in Paulinho.

Chile defender Gary Medel has an ankle injury but, if fit, will keep his place in a full-strength side.

Key midfielder Arturo Vidal will return after being rested for the group stage defeat against the Netherlands.

Vidal, Charles Aranguiz, Francisco Silva and Eugenio Mena are all one booking from a ban, along with Brazil quartet Thiago Silva, Ramires, Neymar and Luiz Gustavo.