you are right Real Madrid will upset Chelsea. With Real Madrid's current form, it will be very difficult for Chelsea to stop them. Benzema in particular is in great form right now. Benzema has scored 6 goals in the last two matches. Benzema scored a hat-trick against Barcelona's strong defense. It will be challenging for Chelsea's defenders to contain Benzema alone. Also, young Vini is playing very well now. Chelsea's defense seems ineffective against Vini-Benzema and Modrich. At the Bernabeu we will only see the dominance of Madrid.
His condition will increasingly make Madrid the favorite for now, especially if you look at it from the point of view of the conditions where Madrid's performance in the domestic league seems to be finding their performance again.
Chelsea can still compete, it's just very difficult of course for them.
In a week the first leg will start at the Bernabeu and of course Madrid will be even more favorite and will benefit because apart from their good performance, they will also be under the watch of thousands of fans who will fill the stands so this will be even more difficult for Chelsea if they are hit by a trigger from the start .