"We have been using him more as a second striker in recent weeks, which he can do, but obviously before he has done it in a different league in different styles.
"He has got to adapt to the league and it is going to take time.
"He was the king of Fenerbahce and to come here and not hit the ground straight away scoring, it has been a knock back for him.
"But we have got to work with him. He has to keep working hard and things will turn because he has got quality."