Barca have now gone three games without a LaLiga win having picked up five points out of a possible 21, suffering defeats by Leganes and Las Palmas in their previous two home games. They are three points behind Atletico having played a game more.
Pedri sent the Catalans ahead but second-half goals from Rodrigo De Paul and Alexander Sorloth helped Diego Simeone's side move three points clear at the top of the table, having played one match fewer than Barca.
Diego Simeone's red-hot Atletico are one of the most in-form teams in Europe on an 11-game winning streak in all competitions and looking like a well-oiled machine with Antoine Griezmann, Julian Alvarez and Rodrigo de Paul firing on all cylinders.
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.
The president of the Spanish Football Federation, Angel Maria Villar, was detained by police Tuesday as part of a corruption probe, a judicial source says.
New Barcelona coach Ernesto Valverde laughs off the idea of bringing in new players and says the best signings are the players already in the dressing room.
Barcelona star Lionel Messi shies away from making major promises for the coming season, but pledges to do his "best" under new coach Ernesto Valverde.
French teenager Theo Hernandez becomes the first player to cross the divide between Atletico and Real Madrid in 17 years. The clubs confirm they have reached an agreement - local media report it to be worth around 30 million euros ($34 million).
FC Barcelona announce that forward Lionel Messi has agreed to renew his contract with club in a deal that will keep the Argentina international at the Camp Nou until 2021.
Eduardo Berizzo will take charge of Sevilla next season after the Spanish club announce the agreement of a two-year deal with the Argentine.
Atletico Madrid’s Antoine Griezmann confirms that he would be staying at the club next season.
German international goalkeeper Marc-Andre ter Stegen ties his future to Barcelona by extending his contract with the Catalan giants to 2022.
Barcelona expect to confirm Ernesto Valverde as their new coach on Monday after club president Josep Maria Bartomeu called a press conference for 1900 local time.
Barcelona midfielder Andres Iniesta hints he may not renew his contract with Barcelona.
