Everything can happen, especially in this stage of the season and the final stage of the game. Real Madrid needs to be careful with Dortmund because they are not a team to underestimate; they can make a surprise move. Although Real Madrid are stronger and they are doing better than Dortmund in all aspects, in this stage of the season we should not underestimate any team opponent. Since this is the final, you can see that Dortmund will do everything possible to see them win the title, but I think it will be very hard for them to achieve that because of Real Madrid's consistency, so let's see how they will do and who will win the league title, even though I consider Real Madrid to win.
Since the start Madrid has never underestimated Dortmund until now it has been proven that Ancelotti and his players are very focused on showing their best performance in the final. Therefore, the rumors about Mbappe move were not responded to and said we would focus on UCL. With what Madrid is doing, it means there is no assumption that Dortmund is easy to beat. Real Madrid is not a club that underestimates its opponents, Manchester City and Bayern Munich are proof that Real Madrid's determination is very optimistic about getting to the final.
On the other hand Dortmund has realized that what they are up against is a club with an extraordinary existence. What Dortmund needs to do is also try to show their best game and the final result depends on the struggle of each player until the last minute. Against Real Madrid you have to have the whistle blow because if even 1 minute is considered safe then that's where the nightmares come. If Dortmund has found the best composition to play on the field then don't be too quick to make changes, like what Tuchel did, who thought Madrid would lose instead they were given a nightmare, it didn't stop after loss Tuchel was immediately fired.