"I don't want to say too much about it," said the young defender.
"I just can only say that I have got the feeling, that for myself, I have made a beautiful step. I'm very fit and I feel very happy here."
"If the national coach would appeal to me, then I'm ready for it. And if he finds that others are better, then he has to take someone else.
"Of course I would love to go to the World Cup, but I can only wait and do my best."