The England left-back is said to want to leave United this summer and favours a lucrative move to the Saudi Pro League.
But Amorim said from New Jersey yesterday: "I think Luke Shaw is a world-class player. That is my feeling – when he touches the ball, the ability to play one against one.
"England had two finals and he’s always there - that means something. He needs to be fit, he needs to train always within the limit. He’s doing that in the moment and he’s a great player but he has competition this season.”
Amorim also discussed the spirit within his squad,.
He added, “The best teams in the world, you feel the bond between players and feel it’s important. We need to remind ourselves how special it is to be Manchester United. I really like that feeling, to be in a group that is healthy. We are going to suffer, we have problems but that feeling of bonding from everybody – staff, players – is really important. I think it can help us to win games where we’re not performing so well.”
Big plans
Meanwhile, Amorim also insisted he was counting on Kobbie Mainoo this season.
He said, "I think he can play in both positions in the midfield. Last year, he played more in front. I think his perfect position is more near the ball, always with the ball. I think he's a big talent and you guys know that better than me, that he is a big talent. I think he needs to increase the rhythm, the pace.
"I'm always on top of that with Kobbie because he's so good sometimes, but he can be better. So I have big plans but, like I said, it's one game per week and the competition is going to be huge. Everybody has to be prepared to play one game or play all the games. That is the key point in our season."