The Champions League is, in terms of club football, the most prestigious one. And if you don't win it you will never be named one of the greatest teams, no chance.

I came to Dortmund from a relatively small team and I struggled during my first six months to find my place there. I was a bit shy and, to be honest, I wasn't brave enough do certain things. But thanks to the help of my team-mates, and with the help of Jurgen and his staff, too, I managed to improve.

It's become the norm that a player who has another year on his contract period has a decision between separation or extension.

If we lose and someone is better than us then we accept it. Handshake after the game and well done and focus on the next game. But if we lose and don't play the style of football we want to play then we know it's our fault and we can do it better.

The elite footballers of one country meet at the national team and it's an honour for me to be among them.

Jurgen Klopp is more the emotional one and someone who can motivate really well. Pep Guardiola is more tactical, who always takes care of details and wants to show you how to do everything. Both are world-class managers and both have their own qualities. Both are amazing personalities.

I dream of winning the Champions League title with Manchester City and a title with Germany.

Rehab is always up and down for the mind and for the body.

I prefer to get my own picture of people and Pep was the main reason that I moved to City. I am very happy with how things have gone, both personally and in a sporting sense.