Los Blancos welcome Barcelona to the Bernabeu currently sitting four points clear of the Spanish champions at the top of La Liga.
"We're very excited. We are going to try and do everything and play attacking football. We'll attack and defend together," Ancelotti told reporters.
"In the first game we only played well for part of it. We're going to need a solid 90 minutes this time. Both of these teams have players who can win matches on their own. The difference will be how hard each team works."
"It won't come down to individual quality. The team that plays better will win the match."
Barcelona were 2-1 winners in the reverse match earlier this season.