I have a passion for fast cars. To drive them means pure joy to me.

Before I arrived here [ Borussia Dortmund], a lot of people were questioning about whether I could ever play as a striker, that I was a guy who could only run down the wing quickly.

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.

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

I have a passion for fast cars. To drive them means pure joy to me.

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

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.