Cristiano Ronaldo: It's annoying to have to prove that I'm very good every year Serie A Spoke about his move to Juventus and more

Not everything is rosy for Cristiano Ronaldo because, despite him being one of football's greatest ever players, the forward still faces constant criticism.

The former Real Madrid star has won so much, but still faces the challenge of proving his worth to those who doubt him every season.

"I won't deny that sometimes I get annoyed and tired because it seems as though every year I have to prove that I'm very good," the Portuguese admitted in an interview with ICON Magazine from El Pais.

"It's difficult, you have extra pressure of having to prove something to people and it's not only for you, but your mother, your son.

"It makes you more active.

"You have to train, but there comes a time when you have to say 'look, let me be...'."

The No.7 packed his bags last summer and left Madrid in order to join Juventus, where he was knocked out in the Champions League by Ajax, just like his former club.

"You have to be humble," he explained.

"You have to learn that you don't know everything and, if you're smart, you improve little things that make you better as an athlete.

"I've adapted perfectly at Juventus.

"They saw that I'm not a smoke seller.

"They saw that I'm Cristiano Ronaldo and that I am what I am because I take care of myself.

"Why have I won five Ballon d'Ors and five Champions Leagues?"

Despite deciding to leave the Spanish capital, Ronaldo still holds affection for the city of Madrid and Real Madrid's fans.

"I can't forget or hide my problems with the tax authorities, my life is like an open book," he said.

"I wanted to provide some jobs [with my hair transplant clinic].

"I know people love me, they know I gave a lot to the club and it also gave me a lot.

"They say to me in the street 'Cris, come home, it's always your home' and I like to hear that."

Now 35, the Portuguese is still scoring goals in Italy, even though people continue to expect him to slow down.

"People are always judging," the player went on.

"They say 'it's over already, he's 33, 34 or 35 years of age'.

"You want to surprise people."

People often assume that footballers are perfectly happy in their everyday lives, which Ronaldo explained finding difficult to accept.

"They see me as a person who can never have a problem," he explained.

"They see me as someone who can never be sad and never have worries because of my success and money.

"You have to understand that people don't think like you.

"I understand that and know that people are waiting with a shotgun for me to miss a penalty or fail in a big match.

"It's a big part of life and I have to be prepared, which I have been for many years now."