Amorim is about to begin his first full campaign in charge of the Red Devils.
The 40-year-old replaced Erik ten Hag last November and won seven of the 27 fixtures he took charge of.
United finished in 15th place in the Premier League and lost to Tottenham Hotspur in the Europa League final.
Amorim has already bolstered the attack with Matheus Cunha and Bryan Mbeumo from Wolves and Brentford, respectively.
He also also laid down the law ahead of the 2025/2026 campaign.
“Now they understand when I say something, I will do it,” Amorim told reporters in the US.
“I don’t treat the players as babies. But they have rules now and that can change the way you train. I’m always on top.
“If you don’t train in the right way, I have footage to show you. And I show you in front of everybody.”
