Emery insists Rogers deserves better protection from referees given the abuse he cops.
He said, "Morgan is a very important player for us and sometimes they are trying to kick him and stop him, sometimes being close to a yellow card or red card.
"Two weeks ago, for example, at Arsenal, the foul we saw by Mikel Merino on Morgan was a clear second yellow card (Merino escaped the second booking).
"I am not complaining. I am reviewing everything which happened in the matches we played. We need to adapt quickly to how football is changing.
"It is not in our hands and we must adapt and work. I can’t now complain about how they are managing the contact with goalkeepers and players.
"We must believe in the way they are managing the referees, and football."