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.
Barcelona dismiss another day of political chaos in Catalonia to continue on their merry way at the top of La Liga by beating Malaga 2-0 at the Camp Nou.
Players and coaches of both Atletico Madrid and Barcelona hail the atmosphere at Atletico's Wanda Metropolitano as the thrills of a 1-1 draw drowned out fears the match would be overshadowed by political tension sweeping across Spain.
Barcelona and its members would have to decide which soccer league to play in if Catalonia gained independence from Spain, club president Josep Maria Bartomeu says.
Spanish Football Federation (RFEF) force FC Barcelona into playing their La Liga game against Las Palmas even as Barca requested for the game to be postponed amidst police violence on the streets of Catalonia where voters went to the polling stations to vote on independence referendum.
Znedine Zidane laments Real Madrid's home woes as the Spanish and European champions slipped to a surprise 1-0 defeat to Real Betis.
Barcelona beat Real Betis 2-0 at a emotional Camp Nou following a pair of terrorist attacks in Catalonia.
LFP are not going to allow Neymar’s release clause to be paid in their offices, media reports say.
Spain and Barcelona defender Gerard Pique says that his 'he stays' tweet regarding Neymar was just a personal opinion and nothing official.
Ending weeks of speculation about his future, Cristiano Ronaldo tells Spanish newspaper Marca that he is staying put at Real Madrid to plunder more silverware.
Neymar’s transfer saga keeps rolling and now Real Madrid’s Brazilian defensive midfielder Casemiro adds to the saga by cheekily stating that Neymar would be welcome at Real Madrid.
