I've worked really hard on getting into the box more and being closer to the goal, which I think has brought real benefits to my game. It's definitely improved my goal scoring.

My mother used to have a shop in which she offered very colorful clothes. I liked that from my early days on.

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.

The mentality of coaches and players alike [in Bundesliga]. It's all about winning.

First and foremost, we have to focus on what we're doing and not worry about what Bayern - or any other clubs - are doing.

Didier Drogba and Samuel Eto'o, two fantastic African footballers. So successful. And very nice characters as well. I got the luck to know them personally. They helped me a lot.

With [Samuel] Eto'o, I talked a lot about his great career and how I could become a better player.