The Spaniard is now returning to his very best after a successful six months.
He told chelseafc.com: "I was staying at a hotel in central London, I remember the driver taking me down to Cobham and because of the heavy traffic, I thought there and then about living by the training ground.
"We played against Sunderland that night so I was training on my own, I trained inside because there were a lot of people around and the club didn't want them to see me. I met all the staff upstairs, the people in the kitchen, everybody in the building and it was a nice welcome, it was a special day. I went back to the hotel afterwards to watch the game and Carlo Ancelotti called me to say I would be training with my new teammates the following day."