Arda Guler is too young to be compared with Eden Hazard, he won't end up like Eden Hazard either. This is just the genesis of his career with Real Madrid. I doubt if he is the first player to be hurt with injury in his first season.
The head of the club has assured him over his game time that he will have his time. Player's returning from injuries are meant to be rushed into the team to play so they don't get injured again.
He has been accessed by the medicals and doctors and was given the go ahead. When it's right, Carlo Ancellotti will let him have his chance.
I can agree with you about this. Arda Guler is still 18 years old, it is too early claiming he will experience the same thing as Eden Hazard. Moreover, Arda Guler doesn't experience a too long injury as Eden Hazard. As far as I know, he already recovered from the injury. But he seems still waiting for the best time to play again. I assume Ancelotti doesn't want to take a big risk by suddenly put him on the lineup. Ancelotti lets him to sit on the bench first, Arda needs to unsure first his fitness. However, I think we will see him to play again in the near future. Maybe he will play in matchday 14, when Real Madrid against Cadiz.