No matter how poor is the performance of Barcelona in the recent games we saw from this team in La Liga, they collected enough points and they have had a good performance from the beginning of the season that's why they have enough points to say even if Barcelona is in worst situation they can still have a good chance to win the La Liga title in this season.
I think the latest thing Real Madrid will be interested in now is La Liga, as their next two matches in the Champions League against Man City will be highly competitive, so they will try to ensure the full comfort of key players before them, as well as they have the final of the Copa del Rey. Ancelotti has declared today that Real Madrid won't give up on fighting for La Liga, but I think it's very difficult for them, as Barcelona have easy matches in the next rounds, and they need 16 out of 27 points to win La Liga, which I believe is achievable for them. Maybe the next match against Atletico Madrid is the hardest, but after then, they have much easier matches.