"Sir Alex Ferguson told me what Manchester United were going to do for me and what they were expecting from me in return and after listening to him, I thought it was a great opportunity for me to grow as a player and to experience playing abroad.
"He said that I would be part of the club's future if I worked hard and that was enough to convince me to join. Barcelona weren't pleased by my decision, but they have to understand that if they don't take care of a player’s aspirations it's logical that they will accept another club's offer. That's what I did, to further my career. I feel calm about that decision - but I will always have Barcelona in my heart.
"Nobody knows how long it will take for me to get into United's first team. First of all I have to adapt to the English way of life, the different style of football and the new language. I will give it everything I have got and then perhaps in two years’ time I will be in the team.
"Everyone at United has welcomed me warmly and I am always getting offers of help. I cannot feel alone here which is fantastic. It's different in Manchester compared to Barcelona but I am here to complete my football education, which is why it's the best place for me to stay. Of course, I miss my family and friends and the routine of my old life in Spain but this is my new home now and I hope to have many years in front of me in England.
"The fans at Manchester United don't know me yet, but if I had to describe myself I'd say I was a typical defender. I am hard to beat, I have good control and I am strong in the air. As a child I modelled myself on Ronald Koeman who was a great player for Barcelona. I grew up watching him and I thought he was a very clever defender. My aim is to help this club to win many more titles. After I have achieved that, I would love to go on to play for Spain."