Today's el classico match will be a crucial match for both teams, the match against Barcelona is very important for Madrid to be able to further accelerate their championship title, now Madrid is at the top of the standings and has a difference of 8 points, so with this victory of course will further widen the gap between Madrid and the second rank later
El Clásico is a big match but with 8 points more than Barcelona, Real Madrid will have many options to play in this match. They can play attacking and chase for a winning but they can also play defensive, counter attacking to wait for Barcelona mistakes and finalize this match with a single goal to end it as a winning too.
I believe that with big difference in La Liga and semi final matches in Champions League to play, Real Madrid will choose a second option. Playing defensively and use counter attacking tactics for this El Clásico.
Barcelona's mission to win the classico is of course different from Madrid, in addition to wanting to stay away from Girona, of course defeating Madrid will certainly make them able to prevent Madrid from winning faster, so that Barcelona can still maintain competition in the race for the La Liga trophy even though it is difficult for them, currently there are only 6 games left so all possibilities can happen.
Barcelona will have to use all best players they have for this El Clásico. Win it and keep up their hope and chance to catch Real Madrid with 5 points when season will have 6 more matches after this El Clásico. This is a big task for Barcelona in this El Clásico but this contains risk for them too. Playing attacking against Real Madrid with many good attacking and speedy players, is very risky.