The game's my life and I'm so passionate about it. When you see your life so intertwined with football it can make things very difficult. You might go and watch a film and start imagining footballers running across the screen, you know?
With any possibly erroneous decision, you can always look back and think you could've done something differently - but always with the benefit of hindsight.
From the first moment you accept to join a club, the best thing you can do and the most respectful thing to do is ask yourself: 'What is the history behind this club?'
Ajax have a set model, a defined youth programme - Barcelona have one too, and Juventus. And Atletico Madrid do too. Real Madrid don't - because they alternate developing their own players with signing talent.
The teams that defend well are as important as those that attack well. If you don't concede goals it is much easier to win but it is all about having balance.
The hardest thing in life is reinventing yourself and staying at the top of your game, whilst the hardest thing in football is finding that club you want to stay at.
Diego Costa always gives us physical and moral strength. He is a very important player for the character he transmits to the team, and his potential as a football player.
Maradona and Messi played in different times and in different positions. Messi is much more a striker, Diego was all over the entire pitch. They are two extraordinary players.