Emery says he kept an eye on Palace when coaching in Europe.
He said, "When I was in France and in Spain, I would sometimes watch the Premier League and Crystal Palace is a team that doesn't have a lot of big names in it, like the best teams in the Premier League.
"But they have very good players and produce very good performances. You watch it and say, 'These players are very good and they have a very big level to play against the best teams'. Now I am here and I am watching, and I know that Crystal Palace is a very good team with very good players, with a very good coach and a lot of experience in the Premier League.
"For us, the respect is very big. I think they deserve more points in the Premier League and they deserve to be higher in the table, and for us it's about having the respect and then preparing well for this match if we are to beat them."