However, he believes the Belgium fullback is capable of replacing Pervis Estupinan after his sale to AC Milan.
Hurzeler said: “First of all he needs to adapt to the intensity and I think he does it step by step.
“And then in possession I think you saw he showed some great things. He is a very clever player. He knows how to penetrate the last line from an opponent.
“He knows how to play very efficient passes. He has a good left foot. Now it is about us trying to integrate him into our style of play as quick as possible but so far he is doing a good job.”
The German added, “Of course Pervis was a great player for us and it now is about replacing him.
“You can’t replace him one to one. It is a different character, it’s a different profile so we will see different things.
“But hopefully also very good things.”