The Brazilian came off the bench in the second half at the weekend, to help spark a comeback victory for the second successive game.
After performing well in the 2-1 win over Viktoria Plzen in the Europa League on Thursday, he played his part in helping the Reds to overturn the Blues' lead in the derby at the Etihad Stadium.
When asked whether the 24-year-old has a clean slate and a chance to stake his claim in a different role, Amorim stressed that the message to Antony is the same as for all of his players: that hard work is essential to success.