Under the guidance of interim manager Ruud van Nistelrooy, United finally achieved a breakthrough in the competition, following three consecutive draws under former manager Erik ten Hag.
Reflecting on the resounding win over City, Amorim admitted that this performance was "a dream way" to sign off. Yet, he emphasised that his approach at United would differ significantly.
United swiftly appointed Sporting Lisbon manager Ruben Amorim as his successor.
However, Manchester United, eager for an immediate replacement for the recently dismissed Erik ten Hag, issued an ultimatum: accept the job now or lose the opportunity. After careful consideration, Amorim ultimately chose to make the move.
Goals from Timo Werner and Pape Matar Sarr put the hosts in control in Round Four encounter in the capital.
Liverpool will be clear favourites to beat Championship strugglers Cardiff City on Sunday, despite the continued absence of Mohamed Salah and Sadio Mane on African Cup duty, while Leicester City face a tricky visit to play Nottingham Forrest.
After Greenwood's alleged girlfriend Harriet Robson accused the star forward of sexually assaulting her and subjecting her to domestic abuse, Manchester United had also issued a statement where it asserted that they do not condone violence of any kind.
Ronaldo had recently moved to Manchester United -- the club at which he had made a name for himself, from Italian champions Juventus. From United, the Portuguese superstar had gone to Spanish giants Real Madrid.
Coach Ole Gunnar Solskjaer was delighted at seeing Ronaldo return to Old Trafford
In his first spell for Manchester United, he scored 118 goals in 292 games
