He told chelseafc.com: "I remember when I first came to Liverpool, Pepe Reina helped with everything and he made it easy for me. When I was Atletico Madrid captain I tried to help everyone. These are the basics in football, you need to create an atmosphere and try to create a group of friends. It's not easy and it doesn't always happen but you have to try.
"It's what I learned when I was 16 and arrived in Atletico's dressing room, nobody wanted to talk to me because they were threatened. They called me "El Nino" because nobody knew my name. I didn't like it and it shouldn't be like that, but dressing rooms are very complicated with players coming from different parts of the world and with different roles.
"I was captain in Atletico at 19, playing in the same team as Demetrio Albertini who won three Champions Leagues and Sergi Barjuan from Barcelona, who had won everything, and they were 32, 33.
"I was a kid as captain, so I wasn't the real captain, just a kid learning from them. I wore the armband but they were the leaders and I learned a lot from them.
"It's not easy to come somewhere new and have to find your place. You might feel someone doesn't like you or you might need to find new friends, it's not easy and I don't like this kind of thing. It's not easy, so you want to protect the players who are alone."