Ancelotti will now be hoping to become just the seventh Real Madrid manager to reach 100 victories in the dugout when Rayo make the trip to the Bernabeu.
The 62-year-old recorded 89 victories in his first spell as head coach between 2013 and 2015, while he has won 10 of his 15 games in charge of the club this season.
Ancelotti is on course to become the second-fastest head coach, behind Jose Mourinho, to reach 100 victories in the Real Madrid dugout.
The Italian won the Copa del Rey, Champions League, UEFA Super Cup and Club World Cup during his first spell at the club but is yet to lift a La Liga title at the Bernabeu. body check tags ::