"We have very good players so there will always be an interest from other clubs," the manager told reporters.
"When you score 10 goals in a season and also perform very good for Scotland, then there will be an interest. But we want to keep him because he is a very important player for our squad. What he can contribute, as we saw last season once we had our sixes available, he could play in a more advanced role and he is a highly interesting player for our team."