"Everything is different in England and I have to get used to that," said the Spaniard.
"The way the fans live the game and sing throughout to create an atmosphere is different. Before the game, everyone sings as well. It is not the same as it is in Spain.
"The English game is more physical, too, but it's nice. It's end to end, it flows more and it doesn't stop so often. For the fans and for the players, that's great.
"Manchester United and Chelsea are the strongest teams, but every game is intense. You have to adapt your game according to your opponents.
"There is a lot of expectation among the fans because of the fee, but all I can do is work and score goals like I did against Chelsea.
"Scoring helps with your adaptation, but I don't feel any pressure, so the goal did not come as a relief."