Antony had stated that he could not wait to play for United, and in fact, manager Erik ten Hag gave him his debut just three days after his signing was completed.
In the 35th minute he took his chance, latching on to a Marcus Rashford pass, and curled the ball past Aaron Ramsdale to open the scoring.
The Brazilian is the first Red to score on his debut since Donny van de Beek, who was also signed from Ajax, found the net against Crystal Palace at Old Trafford on 19 September 2020.
Commentating on the game for MUTV, former United defender David May said: "Everyone at half-time was talking about Antony's finish.