Dani Carvajal's excellent second-half strike from outside thebox rebounded off the post and in off the back of Atletico goalkeeper Jan Oblak. Real climb to third, while Atletico remain one point above Real Sociedad.
Jose Mourinho shook his fist in celebration and pointed a finger skywards towards the directors' box where the men who sanctioned Paul Pogba's world record transfer to Old Trafford were no doubt sharing in his delight at a quite wonderful goal
The France striker, linked with a move to Real inthe summer, received the ball on the left from a clever backheel by Neymar, and got between two defenders inside thebox before slotting through Thibaut Courtois' legs to send the Parc des Princes
Renato Augusto pulled one back for Brazil with a good header just three minutes after coming off the bench. Brazil denied a penalty despite Vincent Kompany appearing to bring Gabriel Jesus down inthe penalty box.
Amad restored the advantage, firing in his first Premier League goal from the edge of the penalty box, before Hojlund came off the bench to double the lead.
But Bernardo Silva latched on to a loose ball inthe penalty area and equalised for the visitors with a fine curling effort. Three minutes later City completed the turnaround when Jack Grealish converted Julian Alvarez's low cross.
But the hosts eventually found a way back when Osimhen slipped past his marker inthebox before rifling past Marc-Andre Ter Stegen to level. The second leg takes place in Barcelona on 12 March.
The match's key moment came inthe 55th minute after Ousmane Diomande caught Victor Osimhen inthebox. That allowed William Troost-Ekong to blast home from the penalty spot.
Lionel Messi became the first player to reach 300 La Liga goals as he scored twice in Barcelona's victory over Sporting Gijon. Barca are six points clear at the top thanks to a 31st game without defeat - extending their Spanish record.
Palmer had given Chelsea the lead inthe first half, scoring a Panenka penalty after Lorenz Assignon received a second yellow card for fouling Mykhailo Mudryk inthebox.
Adam Wharton's pass found Schlupp outside theboxinthe closing stages, with the substitute's powerful effort arrowing into the top corner to leave goalkeeper Bernd Leno helpless.
Medhi Benatia shoved Lucas Vasquez over inthebox and Gianluigi Buffon was sent off inthe aftermath. Juventus had wiped out the defending champions' first leg lead inside the space of an hour at the Bernabeu.
Mbappe found Dembele for his second of the game, producing sublime skill by nutmegging Nathaniel Adjei and crossing into thebox before doubling his own tally in stoppage time.
And Chelsea also feel they were victims of an injustice as they were infuriated that they were not awarded a second-half penalty when Cole Palmer's free-kick struck Jack Grealish's hand inthe wall, only for the video assistant referee to rule