Julian Alvarez dinked home a controversial first half penalty for Atletico but Mbappe was in the right place at the right time to bundle home early in the second half on his first appearance in the tense derby clash.
The 36-year-old spent 16 years at Spanish giants Madrid, winning six La Liga titles and five Champions League trophies.
Ancelotti rested several key starters ahead of Saturday's LaLiga derby against Atletico Madrid and next-week's Champions League playoff clash at Manchester City.
Los Blancos were beaten 1-0 at relegation-battling Espanyol on Saturday and subsequently sent a furious letter to the Spanish football federation blasting the country's refereeing as "rigged" and "completely discredited".
Pep Guardiola fears Manchester City's bid to knock holders Real Madrid out of the Champions League will be hampered by the gruelling demands of the Premier League schedule.
Defending champions Real Madrid will play 2023 winners Manchester City in a blockbuster Champions League knockout phase playoff tie after the two teams were pitted against each other in the draw held in Nyon on Friday.
Kylian Mbappe is showing the form that made Madrid crave his arrival for years as Los Blancos swerve a potential crisis.
The holders will face either Celtic or Manchester City in the two-legged playoff on February, with the second leg at home.
The reigning champions of Europe are ensured of their place in at least the knockout play-off round as the league phase of the revamped Champions League wraps up with its final matchday this week.
Julian Alvarez dinked home a controversial first half penalty for Atletico but Mbappe was in the right place at the right time to bundle home early in the second half on his first appearance in the tense derby clash.
The 36-year-old spent 16 years at Spanish giants Madrid, winning six La Liga titles and five Champions League trophies.
Ancelotti rested several key starters ahead of Saturday's LaLiga derby against Atletico Madrid and next-week's Champions League playoff clash at Manchester City.
Los Blancos were beaten 1-0 at relegation-battling Espanyol on Saturday and subsequently sent a furious letter to the Spanish football federation blasting the country's refereeing as "rigged" and "completely discredited".
Pep Guardiola fears Manchester City's bid to knock holders Real Madrid out of the Champions League will be hampered by the gruelling demands of the Premier League schedule.
Defending champions Real Madrid will play 2023 winners Manchester City in a blockbuster Champions League knockout phase playoff tie after the two teams were pitted against each other in the draw held in Nyon on Friday.
Kylian Mbappe is showing the form that made Madrid crave his arrival for years as Los Blancos swerve a potential crisis.
The holders will face either Celtic or Manchester City in the two-legged playoff on February, with the second leg at home.
The reigning champions of Europe are ensured of their place in at least the knockout play-off round as the league phase of the revamped Champions League wraps up with its final matchday this week.
Real Madrid Manager Carlo Ancelotti was overjoyed with Kylian Mbappe's first hat-trick for the club as they beat bottom side Real Valladolid 3-0 away on Saturday to extend their lead atop LaLiga to four points.
