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.

Last season I scored 27 goals but still lost out against Robert Lewandowski. This season has started very well for me, but again I have some tough opponents, most notably with Anthony Modeste from FC Koln. I texted him the other day: "Keep calm, my friend." I am happy for him to be so successful. And in a certain way it even helps me. The better the other strikers are, the more I have to work to be to be ahead of them.

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.

[ Won the 2015 African Player of the Year]meant everything to me. It was the first time a footballer from Gabon was elected Africa's Footballer of the Year. Even for the Bundesliga, it was something no African player had ever achieved. It still makes me incredibly proud and the happiest person on the planet.

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

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.

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.