At first I didn't think I was going to fit into Barcelona's way of playing. There was a lot of tiki-taka and I was thinking that without a lot of space to play in, I'd find it more difficult. I worried about that.

I know what my strengths are and what theirs are and what the three of us do is play for the good of the team.

I lost my balance, making my body unstable and falling on top of my opponent. At that moment I hit my face against the player leaving a small bruise on my cheek and a strong pain in my teeth.

I've got a magnificent relationship with Leo (Messi) and Ney (Neymar). They drive the team, with Andres Iniesta as well - what a player. You know if you have a good relationship with them off the pitch it will be that way on the pitch too. They took it as a sign that I had come to help them, not to compete with them.

I'd have to say I enjoy myself a lot more, really. I don't feel so much responsibility as I did in other teams. It felt sometimes at Ajax and Liverpool that it had to be me. Now, every time I go out on to the pitch, I enjoy myself and laugh. I have gone through too many difficult times in my career and I don't want to keep thinking about them.

My desire at Liverpool was to help get the club playing in the elite because they had been five years without it. We used to talk about it in the dressing room. If Liverpool are not in the Champions League, it is difficult to get the best players to come to the club.

I'm not envious of Leo [Messi]or Ney [Neymar]. Why would I be? If there is envy in the dressing room, you know it's only going to affect results.