Achieving Champions League football is the minimum requirement and always the most important thing for [Dortmund Borussia] club. Beyond that, we want to win a trophy. Maybe the German Cup, because we've reached the last three finals, but haven't won one, so that's a big motivation for us.

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.

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

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.

Speed is a part of me. I think I was born with that, and nowadays a fast player, I need a fast car, too.

The moment my name was called [Africa's Footballer of the Year] was truly overwhelming and I was about to scream with joy.

Few years ago I did 30m in 3.7 seconds. Whether that makes me quicker than [Usain] Bolt, I don't know! We all know Usain is the best.