Image source, AP

They're getting closer. Lionel Messi is given space to run at the Brazil defence and he slides a pass through to Sergio Aguero, but the Manchester City man cannot keep his shot down as another chance is wasted.

Brazil have yet to get involved in this game. Lionel Messi has had a free-kick deflected wide for Argentina and Angel Di Maria is yet to find his range, shooting over the bar from 30 yards after linking up with Tottenham's Erik Lamela.

The Brazilians have already been guilty of a number of crunching challenges. Especially David Luiz, who wiped out debutant Roberto Pereyran that leaves the Argentine rolling on the floor. Welcome to international football, Roberto.

So what impact will this match have on the fitness of so many Premier League players that are on show. South America football expert Tim Vickery has wrote a feature on the BBC Sport website, explaining why Brazil and Argentina rarely play their matches on home soil.

Argentina should have a penalty. And it's that man Sergio Aguero causing the problems. A weaving run into the penalty area is brought to a halt by a clumsy challenge from full-back Miranda. But the referee is not interested and waves play on.

While these two sides are battling it out in Beijing, Football Focus (BBC One, 13:40 BST), will be looking at matters closer to home and asking whether England should play some of their home matches away from Wembley. Have your say here., external

The vote closes at 14:10 BST and the terms and conditions are available here., external The results will be available on this page later today and announced in the programme.

Brazil struggled defensively during the World Cup and they don't appear to have tightened up too much at the back. In the opening 15 seconds, a wonderful piece of control from Sergio Aguero, to take a ball over the top, gives the Argentine a chance. Luckily for Brazil, the much-maligned David Luiz recovers in time to force the shot wide.

Angel Di Maria then fires one over the top from 25 yards. Brazil already looking fragile.

Some of your thoughts on Twitter. Get involved using the hashtag #bbcfootball, external

Stuie Neale:, external Not sure why this is being played in China but Argentina to edge it 3-2.

John McEnerney:, external Great to see Kaka back in the fold, shame his time at Real Madrid didn't work out, top quality. Robinho is a passenger, overrated big time.

Fahad Khan:, external Oscar versus Di Maria. That is the place to look at. That is where all the goals will come from.

Image source, ChinaFotoPress

The players are out on the field and the national anthems are soon to be played.

But we are lucky to have a game at all as there were fears it would be cancelled because of pollution. On Thursday players were stuck in their hotels after authorities issued an orange pollution alert - the second highest level with air quality 18 times worse than the recognised safety level.

"One of the pieces of advice that those responsible for pollution control give is that people should stay indoors and this is what we have done," said Rodrigo Lasmar, Brazil's team doctor.

"Our athletes stay inside the hotel and only go out for training. Out of every 24 hours, they spend 22 inside the hotel."

Will this cause the problems later in the match. We will soon see.

We mentioned the game was taking place in China. There are going to be some tired players at Manchester City, Chelsea and Manchester United next week.

Image source, BBC Sport

So what has happened to Brazil since 8 July?

Well, they've gone back in time, that's what.

Manager Luiz Felipe Scolari resigned after the World Cup campaign, which ended with another embarrassing defeat, this time 3-0 against Netherlands in the third-fourth play-off.

Since then, Dunga, who was in charge from 2006-2010, is back at the helm and guided them to 1-0 friendly wins over Colombia and Ecuador.

Image source, Reuters

Ex-Manchester City forward Robinho is back in favour and playmaker Kaka, World Footballer of the Year in 2007, is in Brazil's squad and could play for the first time since early 2013. But he is not starting. He has to make do with a place on the bench.

So as always we want your thoughts on this match? Who is going to win, what are the key battles and what do you expect?

Also, what do you make of the decision to hold the game in China?

We have mentioned that Brazil fans may never forget their 7-1 thrashing at the hands of Germany. What is your side's worst defeat? Does it still hurt? If so, why?

Send us your thoughts and we will post your messages on this page throughout the day. Use Twitter, using #bbcfootball, leave a message on our Facebook or Google Plus pages or text us on 81111 (UK only)

Argentina opt for a potent strikeforce of Lionel Messi and Sergio Aguero. Manchester United's Angel Di Maria and Marcos Rojo are included, as are Aguero's Manchester City team-mates Pablo Zabaleta and Martin Demichelis.

Argentina XI: Romero; Zabaleta, Fernandez, Demichelis, Rojo; Pereyra, Mascherano; Lamela, Di María; Aguero, Messi.

Neymar starts up front for Brazil, while Chelsea trio Filipe Luis, Willian and Oscar are also named in Dunga's starting line-up.

Brazil XI: Jefferson, Danilo, Miranda, David Luiz, Filipe Luis, Elias, Luiz Gustavo, Willian, Oscar, Diego Tardelli, Neymar.

Hello, hola, ola, thank you for joining us and welcome to BBC Sport's live text commentary for Argentina v Brazil.

But today's Superclasico de las Americas is not taking place in Rio de Janeiro or Buenos Aires, nope, the players have gone on their travels and ended up in Beijing, China.

Image source, Getty Images

The Bird's Nest stadium may look familiar to you. This was the setting where Usain Bolt won his first Olympic gold medal with victory in the 100m six years ago in the Beijing Olympics.

Across the city, Argentina collected gold in the football. They beat Brazil 3-0 in the semi-final, although the Selecao won the bronze medal match.

Image source, Getty Images

Ninety-five days later and the scoreline still amazes.

On Tuesday, 8 July, expectant Brazil fans were hoping to see their side beat Germany in the World Cup semi-final on their way to winning the tournament for the first time on home soil.

Image source, AFP

That was the dream. The reality became an unbelievable nightmare, one that will always haunt Brazilian football. Five down after 29 minutes, seven behind after 79. Brazil 1, Germany 7 (seven). Outplayed. Embarrassed. Humiliated.

Image source, Reuters

Today, Brazil can start to feel good about their football again. Today they have the chance to beat their neighbours and fiercest rivals. Games in world football do not get any more passionate than Brazil v Argentina. Neymar v Messi. This is going to be good.

Image source, Getty Images