And that seems like a nice way to wrap things up and hand over to our live text commentators for the build-up.

Today we have heared from Mike Tyson, John Kerry (yes, Kerry not Terry), seen Adam Lallana move to Liverpool and Luis Suarez apologise for that bite.

All the fall out from tonight's matches will be right here on World Cup Sportsday from 07:00 BST tomorrow.

Thank you for your company and enjoy it.

The teams are announced for the first of today's last-16 matches where Argentina take on Switzerland in Sao Paulo:

Argentina:, external Romero, Garay, Zabaleta, Gago, Di Maria, Higuain, Messi (capt), Mascherano, Rojo, Fernandez, Lavezzi.

Switzerland:, external Benaglio, Lichtsteiner, Inler (capt), Xhaka, Behrami, Rodriguez, Mehmedi, Drmic, Djourou, Schar, Shaqiri.

Image source, AP

But has Daniel van Buyten been given a motivational pep talk by Mike Tyson? We would guess not.

The former heavyweight champion of the world has some uplifting words, external for his countrymen ahead of their big match.

Tyson starts: "Now USA you better listen up, you bunch of schmucks, everyone thinks they are going to walk all over us but it's not going to happen..."

USA striker Clint Dempsey has looked pumped in every match he has played in at the World Cup so far, so which Belgium defender will be tasked with... deflating him?

Image source, Getty Images

With doubts over the fitness of Vincent Kompany and Jan Vertonghen, it might be left to veteran Daniel van Buyten to play commander-in-chief in the backline.

Has the 36-year-old still got the legs to cope with Dempsey, and the bursts of Jermaine Jones and Graham Zusi?

Judging by the stats, it is a resounding yes. In his third match - the 1-0 win over South Korea - the Bayern Munich centre-back covered in excess of 10,000m, more than the team average.

Argentina will start as favourites when they take on Switzerland in the last-16 of the World Cup later today, but the European side boast more impressive stats during the tournament.

The Swiss have scored more goals, with their average of 17 attempts per match one more than their opponents.

They have also ran 108.6km on average in each game. Argentina, perhaps due to their superior possession, have covered an average 102.7km in comparison.

OptaJose: , external3 - Argentina have won only three of their last 10 World Cup matches against a European team (D4, L3). Frontier.

BBC Radio 5 live

You need not miss a moment's drama throughout this World Cup on BBC Radio 5 live and coverage kicks off today at 16:30 BST.

Mark Chapman will present build-up as Argentina take on Switzerland with Alan Green and Danny Mills in the commentary position in Sao Paulo.

Then it is over to Salvador - Brazil's capital of happiness no less - where Conor McNamara and Pat Nevin will commentate on Belgium v Brazil from 20:00 BST.

James Campbell:, external Argentina to win 3-0 and USA to win 2-1, both after 90 minutes. Switzerland are too weak, Belgium are not gelling together.

Send us your views on how today's World Cup games will play out by tweeting #bbcworldcup.

Image source, John Kerry

The 68th United States secretary of state John Kerry takes to Twitter to inform us he is taking his USA strip on a trip to Panama as the Stars and Stripes prepare for tonight's last-16 tie against Belgium.

The last time the sides met was in May of last year when Belgium ran out 4-2 winners.

Phil McNulty
BBC chief football writer in Brazil

"Rio is sunny again this morning after the city was hit by a thunderstorm last night - but there is no sign of calm ahead of Friday's World Cup quarter-final between Brazil and Colombia in Fortaleza.

"The face of Brazil coach Luiz Felipe Scolari stares out from almost every television screen and there is still a constant replaying of the penalty shoot-out win against Chile. If expectation and anticipation is high now, imagine how this vast country will be gripped come kick-off time on Friday?"

USA goalkeeper Tim Howard tweets:, external "I...I believe...I believe that...I believe that we will win."

Image source, New York Post

The New York Post send a loud and clear message to the USA team ahead of their last-16 tie with Belgium.

The US hosted the World Cup 20 years ago amid concerns the country could not boast a football culture but the team are now ranked 13th in the world.

For more on the transformation of 'soccer' in America, read Ben Smith's feature. It will even tell you what "flopping" is in football and no, it is not their description of England's performance.

Netherlands winger Arjen Robben tries to win penalties, according to his former Chelsea boss Jose Mourinho.

Robben, 30, was accused of diving by Mexico coach Miguel Herrera for the spot-kick that earned the Dutch a 2-1 win in the World Cup last-16.

"Because of his speed and creativity, he is punished a lot with fouls by opponents who cannot stop him," said Mourinho. "Sometimes he tries to get an advantage, or to get a penalty."

Image source, Getty Images

BBC Sport pundit Mark Lawrenson: "Switzerland had a topsy-turvy time of it in their group before making it through to the last 16, but this is where their World Cup will end.

"I know Argentina striker Sergio Aguero is out but Lionel Messi keeps coming up with the goods when they need him to, and it is frightening to think that he probably has not even got going properly yet.

"The attacking football and number of goals so far at this World Cup have been great, but what is making it even more special is to see people like Messi playing the kind of football we know he can. Hopefully there is more to come."

Lawro's prediction: Argentina 2-0 Switzerland

BBC Sport pundit Mark Lawrenson: "I have co-commentated on United States matches twice at this tournament, and Belgium should underestimate them at their peril.

"On paper, you look at the two likely line-ups and you think Belgium will win - it's a no-brainer.

"But USA boss Jurgen Klinsmann has got his side so well drilled, and the thing I have noticed is that they stay on their feet - they do not commit themselves, and they stay in the game rather than dive in to tackle.

"So they will not be easy for Belgium to break down and I think this is going to go to extra time and penalties… and I am going for Belgium to win those."

Lawro's prediction: Belgium 1-1 USA (Belgium to win on penalties)

Image source, David Ornstein

BBC Sport's David Ornstein:, external "WE WILL REMEMBER FOREVER" - local press in Porto Alegre hail the city's five World Cup matches a resounding success

Image source, Getty Images

It has been "James Rodriguez this, James Rodriguez that" - but there are other good young players in this tournament, one of whom is Switzerland attacking midfielder Granit Xhaka.

The 21-year-old Borussia Monchengladbach player is one of a host of exceptional number 10s on display at the World Cup.

Xhaka was one of his team's few bright sparks in the 5-2 defeat by France - scoring a brilliant low volley from a ball played over the top.

Up against him will be left-back Marcos Rojo. The 24-year-old Sporting Lisbon player scored one goal and made nine runs/deliveries into the attacking third against Nigeria in the thrilling 3-2 win.

However, he might have to repress his instincts to drive forward against Xhaka and his team-mates.

Image source, Getty Images

Xherdan Shaqiri's hat-trick in Switzerland's final group game against Honduras was the 50th in World Cup history.

Switzerland have won just one of their previous six World Cup matches against South American nations - the one victory coming against Ecuador in this tournament.

Belgium coach Marc Wilmots says he is still waiting to see the best of Chelsea midfielder Eden Hazard in Brazil.

The 23-year-old has set up two winning goals in his side's three wins but has shown only glimpses of his quality.

"I think for the moment Eden wants to do more," said Wilmots. "He can do a lot for us, everyone knows that. Now I'm waiting to see it. It's not a question of putting pressure on him as I know he's under a lot of pressure."

Image source, Getty Images

The only time Belgium have lost to USA in a competitive match was in the 1930 World Cup, when they suffered a 3-0 defeat.

Belgium have progressed from the group stage in six of their last seven appearances at the World Cup.