Good evening and welcome to Eurosport's LIVE coverage of the World Cup Group B clash between Portugal and Spain. We'll bring you all the action as it happens in Sochi. Kick off is at 7pm.

INTO THE WALL! Ronaldo lines up the freekick from the edge of the box on the right hand side. He smashes his effort into the top of the Spain wall. A freekick is given for barging into the wall by Portuguese players.

First yellow card of the match. No surprises as to who it has been shown to. Busquets enters the book for a late tackle on Guedes.

BREAKAWAY! That was a half chance for Portugal on the rapi counter. It all came from Ronaldo's excellent flick around the corner, which set Guedes free. But he dithered and made the wrong choice, shooting from distance.

This Portugal team are very well coached by Santos. They are comfortable in sitting back and inviting pressure on top of themselves, but their movement when they have the ball is great.

Spain are awash with world class midfielders, but the problem they faced in some of their warm up games was that there was no variety. Easy to defend against sometimes.

There is an excitement around the stadium in Sochi whenever Isco gets on the ball. He's the guy who looks like he could make something happen for Spain when they have possession.

That last chance was an illustration of how Spain can use Costa. He hasn't always been at his best for his national team, but Spain can use him to play off, bringing others into the game.

For the first time in the match Spain are now taking control of the ball. We will see more of this from them over the course of the night. Portugal are quite happy to sit deep and absorb.

SILVA OVER THE BAR! That was a chance for the Manchester City playmaker, Spain's first real opportunity of the game. Costa knocked it down for Silva, but he shoots over the target.

There are some somber looks on the faces of the Spain team, including Hierro on the bench and the Spanish football federation chief in the stands. This doesn't look good for them.

So Spain's nightmare week has just got a whole lot worse. How will they respond to going behind so early on in the match? Can they bounce back? That's quite the blow to take.

You just had the feeling that Ronaldo would have his say in this game. Portugal have started the better of the two teams and they made that count in the early minutes of the game.

GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOAL! Portugal 1 (4 mins - Cristiano Ronldo) Spain 0. It's taken a grand total of four minutes for Ronaldo to make his mark in this game! He won the penalty kick and he converts from 12 yards out, sending De Gea the wrong way, placing a powerful spot kick straight down the middle.

PENALTY KICK TO PORTUGAL! The referee points to the spot as Ronaldo goes down inside the box. The tackle was made by Nacho and it looked to be a foul.

We have all been looking forward to this one for a while. This was picked out as the game of the group stages as soon as the draw was made. Sit back and enjoy this one.

The match is under way in Sochi! It's Portugal against Spain in Group B of the 2018 World Cup.