The Brazilian forward will have to pay the referee a small compensation after some injurious comments on the widely popular microblogging website last year
The 19-year-old prodigy was unhappy with the match official's work after his side's league defeat to Vitoria in 2010 and vented his frustration on the microblogging website.
Neymar tweeted that Santos "are always harmed by referees" and went as far as to call Ricci, who signalled a penalty against the Copa Libertadores winners during that match, a "thief".
The Brazil international's attorneys had claimed that it was a friend of the player who had made the tweets, but such allegations did not convince the judge.
"The responsibility is not on who tweeted that message," Ricci's attorney, Giuliano Bozzano, said. "It is Neymar's account and his password, so the player must be held accountable."
Meanwhile, Bozzano indicated that the fee will be donated to charity.
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