Marseille defended Gonzalez in a statement of their own on Monday, saying the player had been the target of "constant harassment, consisting in particular of death threats" after private telephone numbers were released on Brazilian media and social networks.
He was subsequently overheard on pitch-side microphones telling the fourth match official that he overheard a racist comment being used on the pitch, later accusing Gonzalez of this on Twitter and urging VAR to be used to clarify the matter.
Paris Saint-Germain "strongly supports" Neymar's claim to being racially abused by a Marseille player during their feisty match, the French champion said.
As well as Neymar's claim of racist abuse, five players were sent off following a mass brawl deep in stoppage time including the Brazil global, Layvin Kurzawa and Leandro Paredes from PSG and Marseille duo Jordan Amavi and Dario Benedetto.
The world's most expensive footballer was shown the red card in stoppage time of the 1-0 loss at the Parc des Princes alongside teammates Layvin Kurzawa and Leandro Paredes, as well as Marseille's Dario Benedetto and Jordan Amavi.
"Yesterday, I wanted those in charge of the game (referees and assistants) to be impartial and understand there is no place for such prejudice".
"Should I have ignored it?" With a cool head today, I say yes, but my team-mates and I asked the referees for help and we were ignored.
"Racism exists. It exists, but we have to stop it". Neymar told officials as he went off he was racially abused, and went on social media to say his only regret was that he didn't punch Gonzalez in the face.
They host Metz on Metz on Wednesday in what was originally scheduled to be their Ligue 1 season opener.
"Alvaro Gonzalez is not racist".
The league's disciplinary commission, which will decide the punishments, could investigate Neymar's accusations against Gonzalez, who Marseille claim was spat on by Angel Di Maria. The Club remains at the disposal of the disciplinary committee to fully cooperate in the investigation of all the events that occurred in the match, and the 24 hours which followed.