The former PSG trainee has been an unsung hero so far this season.
"Maybe he is overlooked by the press but not by us," Di Matteo told the WBA website. "He is an unsung hero that every team needs and we very much appreciate him as a management, especially as he plays in a position that we know very well.
"Eddie (Newton) played in that position and so did I, and we know how hard it is.
"He is a willing boy and he wants to learn and he wants to improve. He has stepped up and started well and let's just hope he keeps his feet on the ground and keeps on wanting to become a better player.
"I'm not surprised by him. Some people in the club are but I'm not. We see him in training every day so we can see who will step up and who won't.
"We appreciate what he does. He is a good guy. He is a jolly boy with a good attitude and good application. He has teamed up with Gonzo and they seem to have formed a good partnership.
"Although, I don't know what language they speak!"