El Zorro told The Times: "It is the best in the world I think, even better than the Bundesliga.
"I'm learning every day. For a start the training regime is totally different - it is much more intense here. And obviously we play a lot of 4-5-1 and I've noticed that Sam likes all balls to be chased."
The Mexico international added: "I've had two games and they brought me on for just a few minutes each time. I haven't had a chance to prove myself. But I'm not worried.
I'm here to score and I will do as soon as I get the chance. All I want right now is to get off the bench and be there at the start."