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.
While the Catalan side took another step towards their 27th LaLiga title, Real will look for a win against Valladolid on Sunday to keep their slim hopes alive
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
Last week Spanish prosecutors charged the Catalan club with corruption after payments of more than 7.3 million euros ($7.8 million) to a company owned by a former refereeing chief were uncovered earlier this year
After losing 1-0 at home to Barca in the first leg of their Copa del Rey semi-final on Thursday, Real dominated against Betis but missed several opportunities
La Liga leaders Barcelona tumbled to an embarrassing 1-0 defeat at Almeria on Sunday, failing to capitalise on Real Madrid's derby draw with Atletico to extend their advantage.
