The Brazilian youngster has a strong following with his fans coined ‘Neymarzetes’, but has taken to posting a note this week requesting that the more avid followers back off.
“I have a huge affection for the Neymarzetes. I do not know if I would be where I am today without them,” Neymar wrote in a message released through his official Instagram account.
“Lately I have been annoyed by the attitude of some people who say they are fans, but they are not. I cannot keep a phone number for more than two weeks because people who say they are ‘Neymarzetes’ find my number and spend all morning calling and sending messages.
“They discover the numbers of my family, my girlfriend and my friends and they call with stories and tell lies, making them also have to change their numbers.
“That’s why I am here, asking with my heart that all those who appreciate me and have been with me from the start, that if they know anyone who does not know the limits, that they advise them, for the love of God, to change their behaviour.
“These people are causing me serious problems. Please, do not bother me anymore.”
All this seems fairly reasonable - his stellar wages at Barcelona are paid in return for stellar performances on the pitch, and professional behaviour off it. Neymar fulfils his obligations with interest.
But it is worth noting that Neymar is not just a footballer but a huge brand. He courts the commercial side of the game with a greater appetite than Lionel Messi, the world's greatest player.
Even before his move to Barcelona this summer, Neymar was named the most marketable sportsman in the world. Partly on account of the endless transfer gossip boosting internet search hits, but also because of his immense superstar status in Latin America and Asia. That did not come from football alone, but his image and persona.
The world's second-greatest player, Cristiano Ronaldo, has a similar penchant for the endorsement and spin-off but - unlike Neymar - he is immensely guarded about his private life.
Only a few months ago it was announced that Neymar was releasing a range of his own doll. Ronaldo's CR7 underwear made headlines last week, but there is a basic connection between sporty undergarments and the use of an athlete's form to sell the concept of a better body; there is no link between football, Neymar and this abomination.
Does this David Beckham-esque level of 'selling out' mean Neymar should tolerate this level of intrusion, or should he have the same right to privacy as the rest of us? Have your say below.
Eurosport / FootballEspana