It's here! Real Madrid and Barcelona lock horns in the first of four El Clasico encounters in 16 days as the great rivals meet in their La Liga clash at the Santiago Bernabeu.

The final whistle goes, and while it was not a classic Clasico, it feels like a good way to kick off this run of four matches between these two sides. Roll on Wednesday and the Copa del Rey final!

Villa beats the trap and is underneath a ball over the top, but he fails to bring it under his control and it bounces to Casillas.

Xavi goes into the referee's book for dissent as this match threatens to spill over into a mass melee.

Four minutes of added time will be played.

Great run down the right from Ozil and he crosses low to his fellow German Khedira.. The low strike is saved by Valdes!

Ozil turns neatly at the byline and plays it back to Ronaldo, but the pass is intercepted at the vital moment!

Casillas is off his line quickly to beat away Villa's attempted chip over him and Messi's follow-up is over the bar!

That equaliser has at least delivered a frenetic end to this match, and we may yet still have a winner.

Ronaldo's 30th league goal of the season looks like it will end Barca's run of five straight wins of Real Madrid.

GOAL!! Valdes goes the wrong way and Ronaldo scores to level this match!

PENALTY!! Marcelo is caught by Alves's trailing leg and Real have a penalty! Ronaldo, of course, will take the penalty.

Eurosport's own Tim Caple with a nice stat here: "So only Cesar Rodriguez has scored more Classico goals than Messi - 12 to his 8"

Barcelona substitution: Maxwell replaces Adriano.

This time the ball is floated to the far post for Ramos, who is cuaght off balance and misses his header.

Alves gets a booking for another soft foul around the box, on Adebayor this time. The striker seemed to hit the deck all too easily.

Real concede a soft free-kick for Iniesta nipping at the heels of Ozil. Ronaldo will again have a pop here... This time he fires a foot or more over the bar.

Arbeloa gets a yellow card for cynically hauling down Iniesta. That's his seventh of the season.

Messi has become the first player to score more than 30 goals in two successive seasons in La Liga. (infostrada)

Barcelona are suffocating the life out of this game now. No white shirts are getting anywhere near the ball at the moment.

He won't want to admit it, but there is every chance that Mourinho is now saving his players for the Copa del Rey final on Wednesday night. In a one-off final on neutral turf (the Mestalla this year) anything could happen. You will of course be able to follow that match here.