Germany take on France in early game (17:00 BST)
Hosts Brazil face Colombia later (21:00 BST)
Two people die as flyover built for World Cup collapses
GET INVOLVED: Who will make the semi-finals and why? #bbcworldcup
Oxford United sack Gary Waddock and replace him with Michael Appleton
Image source, Getty ImagesAnd on that German team re-shuffle, we bid you farewell for another World Cup Sportsday. Instead, follow our live text commentary of tonight's action.
By 23:00 BST tonight there are guaranteed to be tears of joy and pain. We will dissect every drop from 07:00 BST tomorrow right here.
Thank you for your tweets and posts today. Enjoy tonight.
Image source, Getty Images
Gary Lineker
BBC Sport
"Massive change in personnel and tactics from Germany. Mertesacker is out, Lahm back in his best position, Khedira in, as is Klose."
France starting XI: Lloris (c), Debuchy, Evra, Varane, Sakho, Cabaye, Valbuena, Benzema, Griezmann, Matuidi, Pogba.
Germany starting XI: Neuer, Howedes, Hummels, Khedira, Schweinsteiger, Ozil, Klose, Muller, Lahm (c), Kroos, Boateng.
Image source, BBC SportGermany are unbeaten in 15 internationals (W10 D5), longer than any other side still involved at the World Cup. No wonder these guys are confident.
We have been asking you for who will reach the semi-finals tonight on #bbcworldcup.
James Cameron:, external I'm hoping #COL go through and go on to win the World Cup so I can insist on being called 'Hames' as a tribute.
James is of course referencing Colombia's James Rodriguez, who asks for his name to be pronounced in a way seemingly lost on us Brits.
Image source, Tasso Marcelo/ AFP/ Getty imagesEngland suffered defeat in the World Cup final in Brazil. Yes, you did read that correctly.
In the Playstation gaming World Cup tournament, England's David Bytheway lost 3-1 in the final against August Rosenmeier of Denmark.
The pair saw off around two million contestants to make the final two and Rosenmeier, who said he "trains" four to six hours a day, won $20,000 (£11,700).
Gary Lineker and his merry band of pundits always look so at home in the Match of the Day studio by the side of Copacabana Beach don't they?
Well, you may be surprised to know they have no access to a toilet while sat in the temporary structure.
For more colourful insight, watch Dan Walker giving a guided tour on the BBC Sport website.
World Cup organisers have closed the fan festival in Belo Horizonte on Friday out of respect for those killed and injured when a fly-over collapsed.
Two people died and 19 were injured when the overpass, which was under construction, collapsed onto another road trapping a number of vehicles including a bus.
Officials have stressed that there will be no threat to the World Cup semi-final taking place on Tuesday.
Brazil defender David Luiz tweets:, external "Guys, today is more of a challenge! I want to see the entire Brazil united in this battle!"
Image source, Getty ImagesGermany play down selection fears, despite seven players being unwell.
France play Germany in the first quarter-final of the 2014 World Cup at 17:00 BST.
Hosts Brazil take on first-time quarter-finalists Colombia at 21:00 BST.
Image source, ReutersKevin De Bruyne has outshone the likes of star Belgium team-mates Eden Hazard and Romelu Lukaku in the creativity stakes at the 2014 World Cup.
The Wolfsburg attacker scored the opener and made Lukaku's match winner in the round of 16 win over USA.
At 23 and after a short stay at Chelsea, De Bruyne is a name Premier League fans could quickly forget but as the third most creative player in the tournament, he is making that tough to do.
Image source, OptaA Scottish university has teamed up with colleagues in Brazil to study the effect of hosting the World Cup on the country's children.
Scholars at Dundee University have set out to examine the impact of the tournament on the local population.
Oxford United announce that manager Gary Waddock has been sacked after only eight games in charge of the League Two club. Former Portsmouth, Blackburn and Blackpool manager Michael Appleton has been placed in charge.
There are also changes at boardroom level with new investor Darryl Eales named as club chairman.
David Ornstein
BBC Sport in Brazil
"Conditions at the Maracana are overcast and muggy as the finishing touches are put to preparations for today's quarter-final between Germany and France.
"Police and security are assembling, food and drink kiosks are being stocked, merchandise stands are doing a brisk trade, journalists are typing away, camera crews are getting into position and the pitch is being watered and pruned.
"With under three hours until kick-off, fans are beginning to arrive - the Germany white, French blue and Brazil yellow in fairly equal measure. Televisions in the media centre are showing repeats of the three previous competitive meetings between these sides - hopefully we'll be treated to another classic today."
Phil McNulty
BBC chief football writer in Brazil
Image source, EPAWitnessed Luiz Felipe Scolari's fostering of a siege mentality when he was in charge of Brazil in Japan in 2002, when they won the World Cup of course, and with hosts Portugal at Euro 2004.
There was an extra edge here in Fortaleza yesterday, however, as there will clearly be a faction of the Brazilian media who may just delight in his downfall after he held a briefing with a small, select group of journalists. His use of a psychologist has also been scorned by the likes of 1970 World Cup-winning captain Carlos Alberto.
Win the World Cup on home soil and all will be forgiven - anything else and all will be remembered.
The atmosphere is already building in Fortaleza as the sound of firecrackers can be heard along the seafront here. Promises to be quite a day.
Image source, EPANetherlands fans have been travelling in their thousands to Salvador ahead of their historic first meeting with Costa Rica in Saturday's last quarter-final (21:00 BST).
The World Cup is beginning to take a grip on business for those country's still represented.
In France on Friday, politics ground to a halt with the ruling Socialists demanding the day's session be ended early at 17:00 BST so senators can take in the country's quarter-final against Germany.
Across the border meanwhile, German auto giant Volkswagen cancelled the late shift for 4,000 workers at its main plant in the northern city of Wolfsburg.
Image source, Lukas Podolski InstagramGermany's Lukas Podolski takes to Instagram:, external "Matchday. Quarter final in the Maracana - that's what you are playing football for. Feeling the tension just a few hours before the kickoff."
You can watch his side in action against France on BBC One or listen on BBC Radio 5 live.
Germany play down selection fears, despite seven players being unwell.
France play Germany in the first quarter-final of the 2014 World Cup at 17:00 BST.
Hosts Brazil take on first-time quarter-finalists Colombia at 21:00 BST.
Image source, ReutersNetherlands and Costa Rica will bring an end to the quarter-finals in Brazil and the odds are stacked heavily in the favour of the Dutch. Costa Rica, however, are in the form of their lives.
Netherlands have won 10 of their last 11 World Cup matches, with the only blip in this run being their 2010 final defeat against Spain. Costa Rica meanwhile are unbeaten in four World Cup games for the very first time (W2 D2).