Ruben Amorim has heaped praise on Alejandro Garnacho for the way he has kicked on and "changed in everything" since the disappointment of being left out of the Manchester derby.

It is seven weeks since the Argentina international and fellow academy graduate Marcus Rashford were surprisingly omitted from the United squad that went on to to secure a late comeback win at City.

The latter's continued exile is dominating the headlines, with Amorim saying on the eve of the Europa League match against FCSB that he "has to change" and meet his standards to have a future at Old Trafford.

Speculation rumbles on over Rashford ahead of Monday's transfer deadline, with Aston Villa understood to be exploring the possibility of signing him, while talk about Garnacho's future also continues, although the 20-year-old's response to the City setback appears starkly different.

"He changed right away since that game against City," head coach Amorim said of Garnacho.

"The way he understands things and understands that I just want to help him, I just want to win games.

"He changed in everything: the approach when you talk with him, the way he recovers.

"He understands that sometimes I'm a different coach, that I am demanding in my way and sometimes it's hard with the first impact because it's a different kind of coach.

"He understands that it is never in a bad way, it's always for him, but I am different person.

"I think all the merit (goes to) Garnacho. He is improving and we want to continue to improve with Garnacho."