Winning the La Liga title is not difficult for Madrid. Real Madrid is not ahead by a big margin. However, Madrid's two main opponents, Barcelona and Girona, have had erratic performances. That's why it won't be difficult for Real Madrid to win the La Liga title. So Ancelotti will now prepare his squad to face Manchester City.
Ancelotti can prepare his team for both Manchester City and their games in LaLiga, the LaLiga is not over and they would want to win the two tournaments and not one. I don't agree that winning the LaLiga is easy for Real Madrid, if they make mistakes and start to drop points, Girona and Barcelona would be there to take advantage of it. Real Madrid is a team with so much quality, they don't have to drop their performance in any tournament, they can play at their best in the both of them and win it.
the thing that i admire about real madrid, they are a consistent team so far, their strength is very stable, even lopsided issues are very difficult to hit madrid. currently they are 7 points ahead of girona who is in 2nd place, in the local league i'm sure they will become champions as well as in the champions league, they have a big chance to become champions i'm sure with the strategy that anceloti continues to use, madrid is lucky to have him as a coach.
In essence, Real Madrid only needs to maintain its position with good results in every match and in this way, of course Real Madrid will remain at the top of the La Liga standings until the end of theseason. Apart from that, Barcelona and Girona are only fighting to finish in second place and not to catch Real Madrid and thus, on paper at least Real Madrid is certain to get the La Liga trophy this season. Unless, if for example Real Madrid gets a losing streak, then Real Madrid could be overtaken but yes, that is a scenario that I am sure will not happen. But regarding Real Madrid's next opponent in the Champions League quarter-finals, I think it was a final match that happened too quickly and of course Real Madrid and Manchester City both have to be able to make good preparations.