The team's performance in the second round clash was disappointing, and Amorim's reaction during the game sparked concerns about his leadership.
According to reports, Amorim has the support of the Manchester United board, despite the team's poor start to the 2025-26 season.
The club invested heavily in new players during the summer, spending over £200 million on Matheus Cunha, Bryan Mbeumo, and Benjamin Sesko.
They have also agreed to transfer several players, including Alejandro Garnacho, who is set to join Chelsea.
This move is seen as a significant backing of Amorim, who has been under pressure to deliver results.