Manchester United staged a late comeback to win 2-1 away at rivals Manchester City in the Premier League.
They did it without Marcus Rashford and Alejandro Garnacho - who were both left out of the matchday squad.
Amad Diallo was United's star performer, winning the 88th minute penalty that saw Bruno Fernandes equalise after the youngster was fouled by Matheus Nunes.
City had hardly got over that shock when seconds later it became the "Diallo Derby" as he sent the visiting fans into delirium with a superb finish from the tightest of angles.
It was a rich reward for United boss Amorim after he ruthlessly axed Marcus Rashford and Alejandro Garnacho from his match day squad, but then suffered an early blow when Mason Mount was struck down by his latest injury, limping off after only 14 minutes.
Opportunities were at a premium in a game largely made up of desperate mediocrity, United looking to have wasted their best opportunity to equalise 17 minutes from time when Fernandes raced clear on to Rasmus Hojlund's pass, only to lift his finish over the onrushing Ederson but wide.
United remain in the bottom half with 22 points but will hope their smash-and-grab raid at The Etihad Stadium will spark a move up the table during the festive period.
Captain Marquinhos has snatched the winner as champions Paris St Germain won 2-1 at troubled Olympique de Marseille in Ligue 1 on Sunday, condemning the hosts to a fifth successive loss and a spot in the relegation zone.
Manchester City head into the first international break three points clear at the top of the Premier League after Antoine Semenyo's double sealed an enthralling 5-3 home win over Sunderland, for whom Brian Brobbey grabbed a hat-trick, on Sunday.
JJ Spaun had a message for US Presidents Cup captain Brandt Snedeker, and he delivered it with his clubs instead of his phone, closing with a hot finish to win the BMW PGA Championship on Sunday in Surrey, England.
Atletico Madrid beat arch-rivals Real Madrid 2-1 in LaLiga on Sunday as second-half goals from Alejandro Grimaldo and Jonathan David settled a tense derby at a packed Estadio Metropolitano.
UAE athletes competed in shooting, cycling, triathlon, swimming and football at the Asian Games in Japan on Sunday, as the country's campaign continued across Aichi-Nagoya.
The UAE, working with Paraguay, has sent humanitarian supplies to communities affected by the earthquake in Colombia as part of a $10 million aid package.
The UAE has called for a more inclusive international approach to combating extremism and hate speech, with greater involvement from community leaders, young people, civil society and technology companies.