"In February that year they came over and said they wanted to sign me. At the time I was only on loan in Paris and Barcelona wouldn't sell me to another Spanish club.
"It wasn't easy to find another club like that because they were asking for quite a lot of money for me for my age. So I took the chance to go there. At that moment, Rangers were a big club, with big players, playing in the Champions League.
"But Scottish football was tough, really tough. It was really physical, people got at you and I had to improve on that a lot. I think I did that to get to the level that the Premier League required of me."