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Terrific stuff from Iceland. In their first appearance in a major international tournament, they have taken a point after a wonderfully resolute performance in Saint-Etienne. Portugal impressed in the first-half but wilted dramatically in the second with Cristiano Ronaldo failing to inspire on a frustrating evening for his side.

Iceland celebrate Portugal draw.
Iceland hold on for huge draw with Portugal. Getty

Hungary lead group F after their shock victory over Austria, with Iceland and Portugal sat second and third respectively.

Full time: Portugal 1-1 Iceland

And the wall does its job again! Ronaldo's free kick is blocked and that will be that.

Ronaldo slams one on goal but it is charged down by the wall. It hit an Iceland hand however and Ronaldo will get another go a few yards closer.

Now Nani neatly turns Gunnarsson and wins a free kick a good 35 yards out. Too far out for Ronaldo? This will be there last chance of the game...

Aaaand it's wasted. Quaresma drills it in but it fails to beat the first Iceland defender. A minute of added time left.

Portugal switch play to Quaresma on the left. His touch to control it is superb and allows him to knock the ball over his marker, before being knocked over himself. Portugal free kick.

Three minutes of time added on here.

Ronaldo leaps terrifically to try and meet a cross from the left but he is penalised for a foul on Halldorsson. Bit harsh, that.

Iceland almost shock Portugal! Finbogason shows neat work on the edge of the box before letting fly with a vicious effort, but it's close enough to Patricio for him to bat it away.

What a chance for Ronaldo! Nani is freed out on the right and his cross into the middle is perfect. Ronaldo has peeled away from his man again inside the six yard area and meets it with a firm header, but it is straight at Halldórsson.

Andre Gomes, whose probably been Portugal's best player tonight is replaced by Eder.

A change for Iceland here as Finnbogason replaces Sigthorsson.

Pepe involved in controversy. Again. Getty

Pepe pleading his innocence, here. We don't have the image of the challenge just yet, but we already know you don't believe he didn't do anything wrong.

Gomes does brilliantly to skip over a few challenges and he immediately looks to bring Quaresma into the game, threading a ball down the right for him to run onto. He tries the shot, but settles for the corner.

Ricardo Quaresma, deemed not fit enough to start tonight's match, enters the fray, replacing João Mário.

Gunnarsson channels his inner Rory Delap by chucking a huge throw in towards the six yard box. Sigthorsson gets to it first and tries to knock it across the face of goal to Bödvarsson but Portugal just about manage to clear.

Portugal vs Iceland
Portugal vs Iceland Getty

Iceland have defended terrifically in this second-half; Portugal can't find a way though and look shaky themselves at the back.

Portugal inches from a second! Guerreiro lifts a free kick in from the right which Nani gets the faintest flick onto. It looks like it might just be enough to take it into the far corner, but it bounces just wide of Halldórsson's post.

First change of the match, Renato Sanches enters the fray to replace Moutinho. 20 minutes left.

Pepe takes a kick out at Sigthorsson after he was pushed to the floor. He's the horrible gift no one wants that keeps on giving.

Terrific defending from Sigurdsson! Ronaldo gets the ball on the edge of the box and charges at the Iceland centre-half, dropping step overs to his left and to his right. Sigurdsson is having none of it and times his challenge to perfection, cleanly taking the ball to ease the pressure on his side.

Bjarnason has been tireless in this second half. He chases a hopeful ball out to the right, shrugging off Vieirinha with ease before whipping an inviting ball into the box where Bödvarsson is a whisker away from making contact.

Bjarnason scores for Iceland
Bjarnason scores for Iceland Getty

Vieirinha, to the right of the picture, completely lost Bjarnason in Iceland's equaliser.

Guerreiro rushes towards the box before laying the ball off to Gomes, who sells a feint to his marker before trying to curl one into the near corner. It forces the save from Halldórsson, who keeps his concentration as Portugal try take the resulting corner quickly, comfortably collecting the ball.

Portugal win a corner out on the left flank that Moutinho can lift into the box. Ronaldo tries to spring onto it, but Arnason nuts it away with a terrific defensive header.

Portugal now lurch forward on the counter and it is four on four with Ronaldo leading the charge, but a misplaced pass gives Iceland the chance to get back.

Birkir Bjarnason
Birkir Bjarnason celebrates Iceland's equaliser. Getty

That was some downright dismal defending from Portugal, but it was a cool finish from Birkir Bjarnason.

Iceland are level! Woeful defending from Portugal, mind. The ball is knocked back to Bödvarsson who curls a neat cross in from the right to pick out Bjarnason, who has the freedom of the six yard area with Vieirinha nowhere to be found. He has the time to pick his spot and slot it under Patricio to net his country's first goal in a major international tournament.

Goal! Portugal 1-1 Iceland (Bjarnason, 49)

Mario feed Ronaldo on the edge of the D, encouraging him to shoot on the turn, but Gunnarsson gets the block. Moments later another one comes his way, dropping for a strike with his left foot but he screws it wide of the goal.

No subs yet from either side.

And Portugal get us back underway for the second half.

Nani celebrates scoring his side's first goal of Euro 2016. Getty

Nani capped a fine move to put his side 1-0 up and Portugal have been good value for their lead. Iceland have been reduced to feeding off scraps on the counter to little success so far.

Half-time: Portugal 1-0 Iceland

Nani is left in a heap following a late swipe from Gunnarsson. He doesn't get the free kick but instead the ref blows up for half-time.

Portugal deservedly lead as we approach half-time. Iceland haven't touched the ball for the last 90 seconds or so as they probe for a second, and it almost results in Ronaldo nodding home a cross from Vieirinha, but he can't quite stretch far enough.

Portugal drive forward on the counter attack with Mario and Nani exchanging passes on the break. Pepe is galloping forward to join Ronaldo in the box with Nani looking for his former Manchester United teammate in the box, but his effort is cleared. Pepe is in no mans land as Iceland look to string together a counter of their own, but Carvalho again puts a stop to that.

Nani celebrates scoring Portugal's opener. Getty

Nani caps a fine move orchestrated by Andre Gomes to give Portugal the lead.

A Portugal corner is partially cleared to Gomes about 25 yards out, inviting him to take the half volley on. He does, but a deflection takes it out for another corner.

Portugal take the lead! Excellent work from Andre Gomes who starts the move, driving forward before playing a neat one two with Vieirinha. Gomes continues towards the byline and cuts a fine pass back for Nani on the edge of the six yard box and he coolly slots it home. Good stuff.

Goal! Portugal 1-0 Iceland (Nani, 30)

38-year-old Ricardo Carvalho halts an Iceland attack with a superb sliding challenge. Not bad from the old man.

Pepe heads away against Iceland. Getty

Pepe has been solid in defence so far but almost provided an assist for Ronaldo moments ago with a wonderful pass from inside his own half.

Oh Ronaldo, that wasn't pretty. Pepe lifts a superb ball from deep into the box for Ronaldo, whose run into the box is again superb. He looks to hit it first time but instead makes contact with nothing but fresh air and the chance is gone.

Portugal are clicking into gear here. Vieirinha clips a fine ball into the box from the right for Ronaldo, who has easily pulled away from his marker. It's a difficult one, even for him, however, and he can't keep it down and on target.

Close from Nani! Ronaldo pulls out to the left, sells his marker with a couple of step overs and swings a peach of a cross with zero backlift into the six yard area. Nani is in the six yard area and does well to pull away from his marker, leaning back to meet the cross with a header. He gets it on target, but it's well saved by the legs of Halldórsson.

Gylfi Sigurdsson is down for a minute after Andre Gomes' accidentally trod on his toes, but he's soon back up on his feet.

Cristiano Ronaldo
Ronaldo in action against Iceland. Getty

Not much joy for Ronaldo so far, Iceland are keeping their shape well and limiting Portugal to hopeful efforts from range.

Iceland are keeping their shape well but suddenly Vieirinha springs forward from full-back, cutting in from the right past two defenders before hammering one on goal. He gets a fair bit of dip on his shot, but Halldórsson stands up to it and punches away.

Portugal are settling into this contest a bit, they are dominating the ball at the moment.

Ronaldo is fed just outside the area and looks to pull the trigger from a decent position but appears to have his trailing leg clipped by his marker. A foul, surely? Nope. On replay, it clearly shows Ronaldo kicked the ground. As you were.

Bödvarsson now scampers through after playing a neat one two with his teammate down the left but he is just offside as he peels off Pepe.

Portugal have their second corner in succession after Danilo's effort was deflected just wide but this time Halldórsson comes out and collects.

Nani is felled out on the right wing and Moutinho takes responsibility for the free kick. He lifts it into the box where Nani tries to glance a looping header on goal, but he can't keep it on target.

Iceland almost open the scoring! Sigurdsson suddenly has acres of space to run into down the inside left channel and easily beats Pepe as he breaks into the box. He shifts the ball onto his right foot and hammers on goal, but it's a rather comfortable save for Rui Patrício, who punches it away.

Within seconds Ronaldo tries to scamper through a couple of Iceland challenges before he is floored by a strong challenge from Gunnarsson. No foul.

And Iceland get the ball rolling for the first-half.

And we are almost underway in Saint-Etienne. For the first time in their history, Iceland's national anthem blares out at a major international tournament.

Iceland fans
Iceland fans ahead of their country's clash with Portugal. Getty

After the first three days of Euro 2016 were marred by violence involving England and Russia fans, there is a nervous wait to see what will happen next. Russia take on Slovakia in Lille on Wednesday and already there have been scuffles, with England and Wales fans linking up against the Russian ultras.

Russia are again involved despite a warning from Uefa that their team could be thrown out of the tournament.

Cristiano Ronaldo
Ronaldo to start against Iceland. Getty

Cristiano Ronaldo starts against Iceland and he can become the first player in European Championship history to score in four consecutive tournaments if he hits the back of the net this evening.

Iceland team to face Portugal: Halldórsson, Saevarsson, Sigurdsson, Arnason, Skúlason, Berg Gudmundsson, Gunnarsson, Sigurdsson, Bjarnason, Bödvarsson, Sigthorsson

Subs: Hauksson, Hermannsson, Ingason, Finnbogason, Kristinsson, Jónsson, Sigurjonsson, Bjarnason, Magnusson, Hallfredsson, Traustason, Gudjohnsen

Portugal fans
Portuguese fans get ready for their group opener against Iceland. Getty

Portugal team to face Iceland: Rui Patrício, Vieirinha, Pepe, Carvalho, Guerreiro, Danilo, João Mário, André Gomes, João Moutinho, Ronaldo, Nani

Subs: Bruno Alves, Fonte, Éder, Lopes, Carvalho, Renato Sanches, Rafa Silva, Eliseu, Quaresma, Soares, Eduardo, Adrien Silva

BREAKING: Ricardo Quaresma is only fit enough for the bench this evening, Nani starts ahead of him.

Team news: Portugal

The resurgent Ricardo Quaresma is a doubt for Portugal's opener due to a muscular problem, meaning former Manchester United teammates Cristiano Ronaldo and Nani could lead in attack.

Ronaldo's 2014 World Cup was a disappointment, largely thanks to a knee injury he carried into that competition. After a season where he struck 51 goals in 50 games for club and country, his body is again under strain after pushing it to its limits.

So will the 31-year-old struggle this time around? Not according to Portugal boss Fernando Santos.

Look, there is always talk about all the players having to arrive at 100 percent, but that is never the reality. In football, that is not what happens. There are always exceptions. Obviously, the ideal thing would be for him to be at his best, but I would never leave out a Cristiano at 80 percent.

"We have looked closely at the preparation so that he does not get more tired. It would be different if he had an injury.

"If we were not sure he would be able to last a game, we would not call him up. I know how he arrived after the Lisbon final [2014] and his problems.

There is one man who will be pulling the strings for Iceland in their attempts to escape group F. In a team of so many unknown quantities, everyone knows the Gylfi Sigurdsson can cause.

Gylfi Sigurdsson
Gylfi Sigurdsson is the leader of his national team. Getty

FULL TIME: Austria 0-2 Hungary

44 years on from their last appearance in a major international tournament, Hungary have marked their return in stunning fashion in Bordeaux.

Hungary now lead 2-0! With Austria throwing everyone and their mum forward chasing an equaliser, Tamas Priskin can spring Zoltan Stieber clear one-one-one. With the goalkeeper rushing out needs to keep his composure and does so brilliantly, dinking a sublime chip Robert Almer to seal what will surely be the biggest shock of the opening round of group games.

Hungary's players and fans celebrate
Hungary's players and fans celebrate Getty Images

Hungary, regarded as perhaps the weakest side in this competition are causing a stir in Bordeaux at the minute. They lead Austria, ranked 10th in the world by a goal to nil with just over five minutes of their match remaining. You can follow the conclusion to that game here.

Balazs Dzsudzsak
Balazs Dzsudzsak celebrates his goal Getty Images

Make no mistake; Iceland's participation at Euro 2016 is by some distance the biggest success story of the summer. The nation of approximately 330,000 inhabitants is out to shock the continent however after a stunning qualifying campaign that saw then finish ahead of Netherlands and Turkey. Having been drawn in perhaps the weakest group in France, qualification to the knockout stages is a real possibility.

Cristiano Ronaldo will begin his Euro 2016 campaign by equalling Luis Figo's record of 127 international caps when he walks out against Iceland tonight. For so many reasons, he is already an icon of Portuguese football. But having come so close in this competition in 2004 and reaching the semi-finals in Poland and Ukraine in 2012, the Real Madrid superstar is still to dominate international football like he has done so often at club level. At 31, there is the sense he is running out of time to do that.

Ronaldo's status as one of the game's all-time greats is already assured. He is a global icon on and off the football pitch, the all-time top goal scorer for perhaps the game's most successful side and has won every major honour at club level in England and Spain.

While he is already Portugal's record goal scorer, the lack of silverware for his country is the only notable omission on a staggering list of achievements. At the 2014 World Cup in Brazil, fitness concerns have prevented him from operating at the peak of his powers. Similar concerns have followed him into Euro 2016, but by his own admission, he is in perfect condition. Is this finally going to be his year?

He is really motivated," Portugal coach Fernando Santos said. "He was extremely motivated to win the Champions League and he is even more so now because the European title is his ambition. He is ready to take Portugal to such an important success."