I am not the humblest person in the world. I admit that.

I am very happy to be signing for the best team in the world and especially proud to be the first Portuguese player to join United.

Many people look at me and think they know me but they don't at all. This is the real me. I am a humble person, a feeling person. A person who cares about others, who wants to help others.

There are people out there who hate me and who say I'm arrogant, vain, and whatever. That's all part of my success. I am made to be the best.

I'm not going to change the world. You're not going to change the world. But we can help - we can all help.

I see myself as the best footballer in the world. If you don't believe you are the best, then you will never achieve all that you are capable of.