Ancelotti: "To beat Atlético you have to be firing on all cylinders"
"We know each other very well and we know that it'll be difficult because they're one of the best teams in Europe," he added.
Team completes derby preparations with all available players
Ancelotti included the Castilla men Rubén Yáñez and Medrán in the final session ahead of the Copa match against Atlético.
The Real Madrid side with the most consecutive victories in the history of the Copa
The Whites have won all 10 of their games since last season's Round of 32 second leg.