Real Madrid have their most important match of the year coming up and so they have no motivation to play for a win over Betis today. Betis, on the other hand, have an opportunity to get into the Champions League zone. Therefore, I think Real Madrid will lose today, they are already La Liga champions anyway.
Yes the Real Betis match is not as important as their final match in the Champions League. They will rule out a match in La Liga, I hope that even if Real Madrid rotate players so they don't forget their main players so they don't lose touch in the game. I think even though they are not ambitious in this match but I see they will still get the points.