As it stands, Los Blancos sit second in the table, level on points with leaders Atletico Madrid, who have a superior head-to-head record.
However, Ancelotti believes that "every game can be crucial" in the remaining months of the season.
"We don't think about the fixture list, we focus on each game. We think that every game can be crucial, for everyone. It's a very exciting league because of this, because every game is difficult. We've seen a lot of surprises in La Liga this season," he told reporters at a press conference.
Los Blancos travel to Sevilla on Wednesday.