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.
I liked to watch Kaka very, very much. The way he played with tremendous pace with the ball at his feet, he just left opponents behind. Watching him was a feast for the eyes.
When I am 32, 33 and I realise that I can't keep my level or it is dropping, it will be a stop abroad where you might not play at the highest level and not keep up with Premier League.
Everyone told me the Premier League is the hardest. So I just wanted to try because I had nothing to lose.
Coach education in Germany is actually very good, but I do not understand why many coaches do not have the guts to push through an idea when they have lost two or three times.
That's why I don't want to know the questions before, when I give interviews whether TV or print. I don't want to prepare myself for what I will answer.
Pep Guardiola tactically brings a gift that is second to none in the world.
I am convinced that you should always play the way you want to play and success will then come on its own - as long as it's a good philosophy.
Iniesta makes the game look easy, but it's not. On the contrary, it's very difficult. I don't think people appreciate it enough when they watch him on TV. He played brutal passes and was always flawless - it felt like he was floating. For simplicity, there is no better player than Iniesta.
Playing for Pep has certainly lived up to the expectations. I knew him from the Bundesliga and saw him coaching Barcelona when everyone saw an excellent manager who is able to get players to improve. He is a great personality and a very nice guy.
Because of our Turkish roots, we still have a very strong relationship with Turkey.
Even though we are at the top level, we all make mistakes. We play the game, and mistakes are part of the game.
