Pescara midfielder Sulley Muntari has been banned for one game after he protested against racist abuse.
The trouble started after asking the referee to stop Sunday’s Serie A match against Cagliari, claiming he was being racially abused.
The ex-Ghana international then walked off the pitch in protest – receiving a second yellow card.
The officials stated that not enough fans took part in the abuse to trigger action.
The Serie A disciplinary committee agreed their actions were “deplorable” but said its guidelines meant it could not impose sanctions as only “approximately 10” supporters were involved – fewer than 1% of the Cagliari supporters in the ground,
“Muntari was well within his rights to approach the referee,” said a Fifpro statement.
“Players should feel comfortable bringing any issue to the attention of the referee, especially one as significant as allegations of racism in the workplace.
“We urge Italian authorities to hear Muntari’s version of events, investigate why the situation was mismanaged, and take firm action to ensure this never happens again.”
Meanwhile the Serie A committee warned Lazio and Inter Milan faced partial stadium closures if there was a repeat of recent racist behaviour shown by their fans.
Napoli defender Kalidou Koulibaly suffered abuse from Inter fans while Lazio supporters targeted Roma defender Antonio Ruediger.