Flick's tactical approach, featuring an extremely high defensive line, also seemed ripe for Mbappe and Vinicius to pillage with their pace.
"Real Madrid strongly condemns any kind of behaviour involving racism, xenophobia or violence in football and sport, and deeply regrets the insults that a few fans uttered last night in one of the corners of the stadium," said Los Blancos in a statement Sunday.
"We are hurt, it's a tough moment, but I want to thank the fans for their support. We don't have to throw everything away, because there is nothing to throw away," added a downhearted Ancelotti.
The Catalan giants triumphed at the Santiago Bernabeu to snap Madrid's run of 42 matches unbeaten and continue their own revival under the German coach who arrived this summer.
Robert Lewandowski struck twice in two minutes as Barcelona crushed rivals Real Madrid 4-0 on Saturday, inflicting the Spanish champions' first La Liga defeat in over a year.
Defending champions Real Madrid are set to host archrivals Barcelona in a LaLiga game at the Santiago Bernabeu tonight.
Kylian Mbappe's start at Real Madrid has been satisfactory, his performances neither spectacular nor underwhelming, but Saturday's La Liga Clasico offers the French superstar a springboard to kick on from.
The viral social media campaign before the September 29 clash encouraged Atletico fans to arrive at the club's Metropolitano stadium and utter "degrading and discriminatory insults with racist connotations" against a Real player, police said.
Real Madrid duo Thibaut Courtois and Rodrygo are likely to miss the Clasico clash with La Liga leaders Barcelona on Saturday with injury problems.
Karim Benzema struck a hat-trick as Real Madrid hammered Barcelona 4-0 at Camp Nou to reach the Copa del Rey final on Wednesday, progressing 4-1 on aggregate.
Barcelona defender Ronald Araujo suffered a thigh injury during the El Clasico victory over Real Madrid, the La Liga leaders said on Monday.
Counting only competitive fixtures, the result was also the 100th for Barça against their eternal rival
The victory dents Madrid's ambitions of retaining the title and leaves the Catalans close to lifting the trophy for the first time since 2019
Barcelona won 2-1 as Franck Kessie struck the winner in stoppage time to send his team 12 points clear at the top of La Liga, but with the score poised at 1-1 with 10 minutes remaining, Asensio netted to put Madrid ahead
Barcelona beat Real Madrid 2-1 in the Clasico at Camp Nou on Sunday to move 12 points clear of their rivals at the top of La Liga.
Barca would take a huge step towards winning their first title for four years by beating the champions for the third time in a row
A tenacious Barcelona frustrated Real Madrid to secure a 1-0 win over their bitter rivals in an ill-tempered Copa del Rey semifinal first leg on Thursday.
Marc-Andre ter Stegen saved twice from the spot to help Barcelona beat Real Betis 4-2 on penalties after a 2-2 draw on Thursday, setting up a Clasico Spanish Super Cup final.
Karim Benzema, Federico Valverde and Rodrygo were all on target as a dominant Real Madrid beat old rivals Barcelona 3-1 at home in 'El Clasico' on Sunday to move top of LaLiga.