On Saturday 26 at the Nou Camp, Barcelona and Real Madrid will meet in of the most spectacular derbies in world football.
With their unbeaten run, Barca will enter the derby as favourties, but you never know what can happen at an El Clasico.
Both teams started the season very strongly with their new managers and will meet for the first time the season.
As usual, there are some injury concerns in both teams.
For Barcelona, Jordi Alba and Jonathan dos Santos will miss the big derby, while Gerard Pique faces a race against time. The Spanish centre-back picked up a muscle strain in the Champions League game with AC Milan on Tuesday, but will most probably be fit in time for the clash with Real Madrid.
Carlo Ancelotti, on the other side, will only be missing Xabi Alonso, who is out for Real until Christmas.
In their last matches, both Spanish teams faced Italian opposition.
Barcelona visited AC Milan and drew 1-1 at the San Siro in a match that could have gone either way, while Real Madrid won 2-1 against Juventus at the Santiago Bernabeu.
Pique vs Ronaldo
The duel which has been crucial in the last few derbies. Pique has been one of the best defenders in the past few years, but when you are playing against an in-form Cristiano Ronaldo, things can change in the blink of an eye.
We all know the incredible pace and the armory of skills the Portuguese winger has. He can easily outrun Pique or beat him in a 1 on 1 situation. But Pique has won this duel in previous Clasicos, because of his amazing positioning.
Many describe him as the 'smartest' defender and he surely is. Very few players have the positioning of the defender and if he has a good day, Pique could well be the match-winner for Barcelona.
Messi vs Ramos and Pepe
One of the finest dribblers of the ball against two of the most hard-tackling defenders in Europe.
Leo Messi has just came back from an injury and scored against Milan after just 25 minutes of playing. This for surely isn't the best news for Pepe and Sergio Ramos.
The duo in Real's heart of the defence will have to make sure the little Argentinian doesn't get too many chances to score, but when Leo Messi is against you, you can't do very much to stop him. Well, except fouling him..
Bale vs Adriano
The world-record signing will most probably start for Real Madrid and will have to play on the right-wing. From there he will have to beat Adriano, who will have to work more defencively than usual.
The Welsh wizard will be tested seriously for the first time since his arrival at the Bernabeu and will face the improved Barcelona defence and particularly, Adriano.
The Brazilian full-back will have to keep a close eye on the Welshman, because he can do some real damage to Barca.
Neymar vs Arbeloa
The second of the big-money signings will also be looking to make an impact.
Neymar will use his Brazilian flair to go past Alvaro Arbeloa, who will definitely have a tough test on Saturday.
Yet the young winger will have to start scoring if he wants to make a real impression.
The battle in the middle
This is probably the most important battle. No matter how well Messi and Ronaldo play, if the men behind them don't do well, then the forwards will just be spectators.
Barca will most probably start with Busquets, Iniesta and Fabregas, who will have to fight with Modric, Khedira and Isco for the dominance in the middle of the park.
The Catalans will play with their Tiki-Taka style and if Real want to win, they will have to press them - a lot.
Yet Barca's midfielders are amazing in their passing and could well use this press to find some free spaces in Real's defence.
Barcelona: Valdes, Alves, Pique, Puyol, Adriano, Busquets, Iniesta, Fabregas, Neymar, Messi, Sanchez.
Real Madrid: Lopez, Arbeloa, Ramos, Pepe, Marcelo, Modric, Khedira, Bale, Isco, Ronaldo, Benzema.
Prediction: It's very hard to predict an El Clasico as it can go either way, but I would say a 2-1 or 3-2 victory for Barcelona.
Write for GiveMeSport! Sign-up to the GMS Writing Academy here: http://gms.to/1a2u3KU