I could have given more and I'm sorry about how it all ended, but I still look back on my time in Germany positively.
I've turned into a full-back who pushes forwards whereas in Italy usually the full-back concentrates more on defending.
Klopp is a great expert in football and I always said that I'd have liked to work with him when I was in my best form. He is a complete coach, he has everything.
When you are not playing much and you expect to play more, it is normal to think of the market. That's the modern game.
I don't see my season with Dortmund negatively. There were some real problems there in the dressing room and they were going through a generation change.