Azar, who is that player? I guess you implied about Hazard, didn't you?
I am also not familiar with that name. Yep, it looks like he wants to say "Hazard". It is funny to see someone called Azar, seems a bit strange to me. But no problem, it may be his special nickname for Eden Hazard. 
Many good players from their original clubs played badly when they arrived at Madrid.
IMO, the main reason is the time to play. Many new players can't get enough time to show their best performance. Moreover, if the player cannot play well at his debut. Also, the new players should compete with their senior in the same position there. If their senior showed better performance, a new player will be at the bench for a longer time.