There are a lot of things to like about [Borussia Dortmund's fans] and the city of Dortmund as a whole.I like their honesty. And I like that my family and I can feel safe here. I don' t have to worry at all about my safety and their and my own safety. Believe me, in other countries I have made different experiences in that regard. All of this, too, has led to my decision to extend my contract until 2020, and I can imagine staying even longer.

I try to stay as young as these rookies are.It feels a bit strange not to be anymore the youngster I used to be. But I'm okay with it. Mostly, I enjoy being on the pitch with so many talented players around me.

I was always sure the Bundesliga was the right choice for me. My first season was solid, if unspectacular, so maybe I would have preferred it not to be so hard at the beginning, but I've worked very hard to get to this point and want to get even better now.

There are a lot of things to like about [Borussia Dortmund's fans] and the city of Dortmund as a whole.I like their honesty. And I like that my family and I can feel safe here. I don' t have to worry at all about my safety and their and my own safety. Believe me, in other countries I have made different experiences in that regard. All of this, too, has led to my decision to extend my contract until 2020, and I can imagine staying even longer.

We have our ambitions [in Dortmund Borussia], and of course I would love to win some titles after some years of finishing second or losing finals.

I would love to have a race against Usain Bolt one day! It would certainly be a good challenge for me.

I always set myself new goals. I always want to do better than I did in the past. I always want to achieve things I never achieved before.