We have a psychologist at Chelsea who goes around seeing the loan players. He said every top, top player has a dark side. So someone like Diego Costa sometimes oversteps the mark. But you can see he plays on the edge. He said I had to develop that. It's not natural for me to be like that.
Chelsea have given me the opportunity to play in a top team with top players, so I will try to be as successful as possible here.
There's a lot of players who you can pick up some stuff from, not just only full-backs or defenders. Even training with the top players every week you can get good things from all of them.
I spent seven years with Jose and we were part of a very good technical staff. We went to top class clubs at Porto, Chelsea and Inter Milan and worked with top players who gave us such a tremendous volume of success.
Sometimes fans, sometimes even players, they don't know the game sometimes, and they look at numbers, or they use smoke-and-mirrors as far as who's a top 15 player, who's a top 20 player.
Thinking back to how it fell apart for Mourinho at Chelsea, I do have some sympathy for him. At most clubs it is the manager who determines the long-term stability of the players but at Chelsea it seems very much the other way round.
Young players try and imitate the best players like Ronaldo. They try to imitate the hair, the clothes, the cars, the tricks. I try to tell them how hard Cristiano Ronaldo trained in training and after training. He only wanted to be the best. Everything else came after.
Everybody has the clarity of telling I haven't seen a player like Lionel Messi, and I am fortunate for training and seeing him every day at the training field. And even sometimes he surprises you with some good performances. There is not comparison with other players I have seen along my life. He is unique.
Some players don't like training and I've seen some players who aren't bothered if they play or not. But I want to play every game. Sometimes you have to rest in certain games, but I want to play in every game.
I think Chelsea is Chelsea. No matter the players we have, we have to fight until the end in every competition.
I thought those three years when we won championships, I really was good enough to play in the All-Star game. I felt I deserved to be in the top whatever that would be, the top 20-some players in the league. Really felt that comfortable and confident on the basketball court.
In a team like Chelsea with many top players you have to prove yourself again and again.
For the players, these top, top, top games or these top, top, top events - like a World Cup or a European Championship - are not common but, of course, something special.
It's tough being at Chelsea. I work hard every day in training. It's a massive club with really good players, so you don't get the opportunity every weekend.
We don't have the money of the Manchester clubs or Chelsea. Arsenal builds its team through training, through recruiting players who can become something. Arsenal has less money than some other clubs, so we have to fight with other values.
The Champions League is the one thing missing from my career. When I look at the history of the competition and the people that have taken part, the top, top players have all won it. For many, it is why they have been regarded as top players.