La Liga leaders Barcelona stumbled 1-0 at home against Leganes on Sunday as they suffered another blow in the Spanish title race.
Diego Simeone's side have been in fine form and continued their winning run across all competitions with a deserved home triumph, pulling provisionally level with league leaders Barcelona.
Real missed the chance to move above leaders Barcelona in LaLiga as they stay second on 37 points from 17 matches, one behind the Catalans who host Leganes on Sunday when Atletico, in third place on 35 from 16 games, welcome Getafe.
The 23-year-old was forced off with a muscle injury in their 4-0 thrashing of Osasuna at the Bernabeu earlier in November
"We changed the position of the forwards, with Mbappe outside and he did well, like Vinicius inside," said Ancelotti.
Raphinha and Robert Lewandowski's goals put the Catalans in a healthy position but Marc Casado's red card in the 82nd minute helped Celta start the fightback to snatch a point.
Barcelona coach Hansi Flick said Friday he would ask his players if they can win without injured teenage winger Lamine Yamal.
Lewandowski's early disallowed strike led to furious debate over whether the Polish forward had been offside or not.
Hammered by Barcelona in a league Clasico and then outplayed by AC Milan in the Champions League, Carlo Ancelotti's side badly needed this confidence-boosting victory.
Winger Viktor Tsygankov put the hosts ahead 10 minutes after half time but Inaki Williams scored 12 minutes later to claim a point for the away side
Spanish champions Barcelona slipped up in a 1-1 draw at Rayo Vallecano on Saturday in La Liga, continuing a worrying run of underwhelming performances.
Real are second in the standings on 32 points, two behind surprise leaders Girona, who beat Rayo Vallecano 2-1 earlier on Saturday.
This year in Europe it was supposed to be different but Barcelona will have to do it the hard way, with coach Xavi Hernandez watching his credit start to drain.
The draw leaves Madrid second, two points behind shock leaders Girona, who came from behind to beat Osasuna, and two ahead of Barcelona after the Catalans' fortunate win over Real Sociedad on Saturday.
Having suffered a last-gasp defeat by Real Madrid in the Clasico last Saturday despite having the better of the game, Xavi's side inflicted the same suffering on Real Sociedad in San Sebastian.
Brazilian forward Vinicius Junior has signed a new contract with Real Madrid that runs until 2027, the Spanish club announced on Tuesday.
Real Madrid midfielder Luka Modric hailed team-mate Jude Bellingham after his brace earned the club a 2-1 Clasico win over Barcelona on Saturday in La Liga.
Jude Bellingham's stunning double snatched Real Madrid a 2-1 comeback victory at Barcelona in his first La Liga Clasico on Saturday.
Sevilla expelled a supporter for "racist and xenophobic behaviour", the club said in a statement, with Vinicius thanking them for their quick action, as well as highlighting another incident
