Barcelona and Atletico Madrid were also among a slew of top-flight clubs joining La Liga in expressing their condolences for Francis.
Flick said it was one of those comebacks that nobody forgets easily, adding it was not easy to win after Borja Iglesias netted a hat-trick to give Celta a 3-1 lead.
Mbappe will miss Madrid's next La Liga match against Athletic Bilbao on Sunday, as Ancelotti's side try to overhaul leaders Barcelona.
Julian Alvarez, who coolly slotted home two penalties on the night, now boasts 26 goals in all competitions—14 in La Liga. But according to his coach, there’s still room to grow.
It was his first red card after joining the Spanish and European champions last summer.
Barcelona extended their advantage in the Spanish top flight with a 1-0 win at Leganes on Saturday, completing a 12-match unbeaten run and moving seven points clear of second-placed Real Madrid.
Second-placed champions Madrid face Alaves on Sunday and have to play catch-up after Hansi Flick's side scraped their way to a narrow but vital win on the road.
LaLiga side Real Valladolid said they will discipline two of their players after they almost came to blows on their bench during Sunday's 4-0 home loss against Getafe.
The final stretch of this Spanish football season promises drama, tension, and perhaps a few surprises. One thing is certain: La Liga is set for a thrilling conclusion.
Even a single point would have flattered Diego Simeone's side but they took all three when the Argentina international, on as a substitute, finished Antoine Griezmann's cross at the back post.
The Polish forward struck from close range in the first half to maintain Barca's 100 percent record in the league so far this season with their seventh victory.
Mbappe was taken off after 80 minutes and appeared to be suffering some discomfort, holding the back of his thigh. "He's fine, he's fine, a little overloaded, he asked me for the change to avoid problems," explained Ancelotti.
Hansi Flick's side extended their winning streak in the league to six games as they bounced back from their 2-1 loss against Monaco in the Champions League on Thursday.
Teenage star Lamine Yamal struck twice as La Liga leaders Barcelona thrashed Girona 4-1 on Sunday.
Since scoring in the UEFA Super Cup against Atalanta, new signing Mbappe had failed to find the back of the net in Madrid's opening three games in La Liga, prompting criticism in the Spanish press.
After scoring the first hat-trick of his career and delivering two assists to guide Barca to a 7-0 demolition of Real Valladolid, Raphinha said that the result showed that the club has the players it needs to be contenders.
Signed earlier in the summer from RB Leipzig after playing a central role in Spain's Euro 2024 triumph, the 26-year-old Olmo had to wait two games until Barca could register him due to LaLiga's strict financial control rules.
The goal made Endrick the youngest foreign player to score for Madrid in the Spanish league at 18 years, 35 days, surpassing Frenchman Raphael Varane, who was 18 years, 152 days when he scored in 2011.
Real Madrid midfielder Jude Bellingham sustained a muscle injury during training, the Spanish club said on Friday, and will miss key games for club and country.
