If you want to keep up with the changes, then you have to watch as much football as you can. Live is the best way but also on television. All the best teams: Barcelona, Real Madrid, Bayern Munich and now City. What are they doing? If possible, go and see them training. You can always learn.
As a player, you'd rather be up against Barcelona, Real Madrid, or Bayern. Big clubs. Great atmosphere. Real excitement.
If you are the coach of Bayern Munich, Barcelona or Real Madrid, the chances to win something are huge. When you go to the Premier League, you have six, seven, eight teams who are fighting to win.
If you are in the Premier League or at Barcelona, Real Madrid, or Bayern Munich, you are at an end station.
Spain have got a big influence from Real Madrid and Barcelona, and when you watch Spain play, it's almost like watching Barcelona or Real Madrid at times.
Liverpool are one of the dynasties of the game. They have won five European Cups and their status is up there with AC Milan, Inter Milan, Barcelona, Real Madrid and Bayern Munich.
I always say that I need competition, and I need competition every week, and in Spain, I was at an amazing club, but I had four matches a year: Barcelona v Real Madrid, Real Madrid v Barcelona, and after that, we'd win 4-0, 5-0, 4-1, 6-1.
Having Neymar at Real Madrid would be a huge pleasure. Madrid have to do everything to sign the best players in the world and his past at Barcelona would not be a problem.
If you play for a team like Chelsea, Real Madrid, Barcelona, Bayern Munich, or PSG, the aim is always to win the Champions League.
I want to go to a club like Real Madrid, Barcelona, Chelsea, Manchester City, Paris Saint-Germain, or Bayern Munich.
Barcelona, Real Madrid, City - there are many teams you'd want to play against.
Barcelona or Real Madrid, I think I would say yes to playing for these teams.
The best and most important step of my career was when I moved here - and Louis van Gaal brought me from Madrid to Bayern. It was the best move of my career, and it's thanks to him.
You want to play in the best stadiums against the best players - your Real Madrid's and Barcelona's - you want to play those teams.
I like a lot to watch Real Madrid and Barcelona, which are my favourite teams in La Liga.
I still have a thorn in my side at not having played for Real Madrid or Barcelona, because playing there is a dream for every player. But I consider myself very satisfied to have played for the best teams in Italy.