I enjoyed playing against Chelsea, Manchester United and Liverpool but the north London derby was totally different. I have so many great memories from this fixture.
I want to aspire to titles. Liverpool will always be a big club, but we are not at the level of Manchester United, Manchester City, Chelsea, or Arsenal.
I have friends who play for Chelsea, Liverpool, and Manchester United.
I would have loved to play for Liverpool, Manchester United or Chelsea.
I admire Manchester United, Chelsea, Arsenal, Liverpool - these are the teams that are always there fighting.
Our number one opponents are not Liverpool, Arsenal or Manchester United. It is ourselves at Chelsea.
You look at Man United and Liverpool, and they are red - they are much more successful and have a bigger fan base than Chelsea or Manchester City.
The atmosphere generated by the fans in Celtic's stadium for our visit was the most impressive I've ever witnessed. The grounds of Liverpool and Manchester United are good and the hostile feeling of playing against Real Madrid in the Bernabeu is also excellent, but the atmosphere against Celtic was the best.
The Premier League is a very strong league. Chelsea, Manchester City, Arsenal, and Liverpool all have a high quality. But those who know me also know that I always want to win titles. And I think that Manchester United are a club which can win titles.
Finishing in the top four for Liverpool, Arsenal, Chelsea and Man United was easier before, but now it's getting much more difficult with the emergence of teams like Manchester City.
I remember playing against the great Manchester United teams when I was a player.
That was always special, playing Manchester United. I loved the feeling of the derby, that pressure, the atmosphere around it. And I did have some good matches there, didn't I?
All I can do is assess the value from Manchester United perspective. Whatever Chelsea do, they may have a different criteria, and different financial assets.
When I played for Stuttgart, I met Manchester United and Chelsea. With United, I immediately think of the duels with Ryan Giggs and Paul Scholes and with Chelsea, it was John Terry. Those players are symbols of their clubs and the success they had at that time.
In England, there are big games but nothing like the Clasico. Manchester United versus Liverpool is a really great match, probably the best over there. But Barcelona-Madrid is different to any other game in the world.
We have to go into every game with the same mentality as we have for Liverpool. It can be different playing against Burnley to Liverpool. I understand for the fans it's different but, for us, it can't be because the result we want is the same and nothing else.
With Manchester United I want to win. I therefore do not pay attention to what happens in other clubs, I'm totally focused on Manchester United.