BBC Radio 5 live

South American football expert Tim Vickery: "Costa Rica have been one of the big surprises of this World Cup. But I think Costa Rica fans could be thinking their amazing World Cup could get even more amazing still.

"We knew that the conditions would favour the Latin American teams in general but people tend to look down on Concacaf teams. Yet they have had such a great tournament, with the exception of Honduras, but I do think there is better to come from Honduras.

"Mexico are the huge powers in the region, and they will have such a complex now about not making the last eight of the World Cup. They've won Olympic titles, they won the U17 World Cup, and this was supposed to be the year they made the quarter finals.

"Costa Rica now have a real chance of beating Greece and then facing a Netherlands side who will have to pay the price for playing in the conditions in Fortaleza."

We could fall into a possession black hole tonight. What happens if neither side want the ball?

If that entry doesn't persuade you to settle in for a night of Casualty and the Antiques Roadshow, nothing will...

Image source, Getty Images

Greece's seven wins at major tournaments have never been by more than one clear goal (four 1-0 and three 2-1 wins).

Greece have only won two of their nine World Cup games, both against African sides (v Nigeria in 2010 & Ivory Coast in 2014).

Greece have scored in only two of their nine games at the World Cup (the two 2-1 wins v Nigeria & Ivory Coast).

Greece have only kept one clean sheet in nine World Cup games, against Japan in 2014 (0-0).

Both countries have been doing some last-minute homework, having not expected to face each other. Energetic Costa Rica midfielder Yeltsin Tejeda admitted: "We were thinking more about Colombia and the Ivory Coast. Now we have to change the video cassette."

The footage will reveal a dogged Greek side that adopt the ultra-defensive Italian catenaccio system. Their never-say-die attitude enabled them to recover from a 3-0 opening defeat by Colombia to eventually pip Ivory Coast to second spot, albeit with a controversial last-minute penalty, and secure qualification to the last 16 for the first time.

They won Euro 2004 despite only scoring seven goals in six games. Can they repeat that on the world stage?

Costa Rica: Navas, Gamboa, Duarte, Gonzalez, Umana, Diaz, Ruiz, Borges, Tejeda, Bolanos, Campbell. Subs: Pemberton, Acosta, Myrie, Barrantes, Francis, Granados, Brenes, Miller, Calvo, Urena, Cubero, Cambronero.

Greece: Karnezis, Torosidis, Manolas, Papastathopoulos, Holebas, Karagounis, Salpingidis, Maniatis, Christodoulopoulos, Samaris, Samaras. Subs: Glykos, Tzavelas, Moras, Tziolis, Kone, Mitroglou, Vyntra, Gekas, Fetfatzidis, Katsouranis, Tachtsidis, Kapino.

Referee: Benjamin Williams (Australia)

Former Blackburn Rovers striker Jason Roberts
BBC Radio 5 live

"When you saw the teams Costa Rica had to play against in the group stages you thought they might not get any points at all but they have surprised at this tournament.

"In the match against Italy I think the manager Jorge Luis Pinto got his tactics absolutely right. Costa Rica lined up in a 4-3-3, they stopped Italy playing and put pressure on Andrea Pirlo.

"Tonight they are up against a Greece side who have only scored two goals at this tournament but who are very experienced and know how to keep clean sheets. It's going to be an exciting game, I hope Costa Rica score first and force Greece to come out."

Arena Pernambuco, Recife

Image source, Getty Images

Capacity: 42,800

Opened: May 2013.

Fixtures: 15 June, Ivory Coast 2-1 Japan; 20 June, Italy 0-1 Costa Rica; 23 June; Croatia 1-3 Mexico; 26 June, United States 0-1 Germany; 29 June, Second-round, Costa Rica v Greece, 21:00.

Altitude: Sea level.

Climate: Wet. It rains in Recife on average 224 days a year - which is nearly double Manchester's average. Temperatures tend to peak at 28C in June and July, which are Recife's two wettest months. Humidity is also usually high during these months.

Time Zone: GMT -3 hours.

Approximate distance from Rio: 1,426 miles.

Where is it?: On the Atlantic coast on the east of Brazil, close to the equator and among tropical forests.

Background: This brand new stadium was built in an economically deprived area on the outskirts of Recife, and will eventually form part of a leisure complex and residential development which it is hoped will act as a catalyst for local regeneration.

Construction progress was slower than Fifa would have liked, but the stadium was eventually declared operationally ready on 20 May 2013, with a friendly between Nautico and Sporting Lisbon serving as a test event two days later.

The match between United States and Germany was almost a total wash out in Recife on Thursday, with the rain hitting so hard that the town centre was flooded out.

And while the surrounds of the Arena Pernambuco are pretty damp, with heavy rain for most of the day, there's no rain in the sky currently and the pitch looks pretty much perfect. The weather is not an issue tonight.

Even 10 years on, Greece winning Euro 2004 seems remarkable.

Was it the biggest upset in a major tournament? Can anyone top it? How far can Greece or Costa Rica go this time? What's the key to victory in Recife?

Let us know. You can text in on 81111 (UK Only), tweet us at #bbcworldcup, external or drop us a line on our Facebook page., external

Greece - European champions a decade ago, incredibly - are new to the knockout stages of the World Cup.

They had finished fourth and third in their groups on their two previous tournaments in 1994 and 2010, but made it through this time around thanks to Giorgos Samaras's late penalty against the Ivory Coast.

If they make it to the quarter-finals, the Greek Federation may have a problem as coach Fernando Santos's contract expires on Monday. He has previously said he doesn't intend staying a day longer.

That wasn't the best of planning was it?

Costa Rica are playing at this stage of the tournament for the second time in their history.

In 1990, they qualified from Group C behind Brazil after beating both Scotland and Sweden, a feat they matched this time around with wins over Uruguay and Italy.

Twenty-four years ago the dream came to an end in the last 16 however, as Czechoslovakia handed out a heavy 4-1 hammering.

Can they reach the quarters this time around?

The last 16 of the World Cup.

Image source, Epa

Home of the elite, the creme de la creme, footballing royalty. Well, that's the theory anyway.

But as the footballers of Spain, Italy, England, Portugal, Croatia and the Ivory Coast all put their feet up at home and get their spare currency exchanged, those representing Costa Rica and Greece will battle it out for a quarter-final berth against the Netherlands.

Image source, Reuters

The eyes of the world are on Recife. Will it be the 28th best team in the world who go through, or the 12th?

We shall find out...

Costa Rica make two changes from the side which drew 0-0 with England. Christian Bolanos and Michael Umana return.

Greece make one change from the side which beat Ivory Coast, as Andreas Samaris starts after scoring from the bench.

Costa Rica: Navas, Gonzalez, Umana, Borges, Duarte, Bolanos, Campbell, Ruiz, Diaz, Gamboa, Tejeda

Greece: Karnezis, Maniatis, Manolas, Samaras, Karagounis (c), Salpingidis, Torosidis, Christodoulopoulos, Papastathopoulos, Holebas, Samaris