Match ends, Paris Saint Germain 0, Marseille 1.
Neymar was one of five players sent off after an injury-time brawl as Marseille beat Paris St-Germain in Ligue 1.
As he left the pitch, PSG's Brazil forward told the fourth official he had heard a racist comment.
Florian Thauvin scored the only goal as PSG lost their opening two league games for the first time since 1984-85.
Home substitutes Leandro Paredes and Layvin Kurzawa, and Marseille's Jordan Amavi and Dario Benedetto, were dismissed along with Neymar.
The referee watched a video assistant referee (VAR) replay of a punch by Neymar before showing the 28-year-old a straight red card.
After the match, Neymar posted on social media to say that his "only regret" was not hitting Marseille's Spanish defender Alvaro Gonzalez in the face, having struck him on the back of the head.
In response, Gonzalez denied claims of any wrongdoing, posting on social media: "There is no place for racism."
In the post-match news conference Marseille manager Andre Villas-Boas said: "There is no place for racism in football but I don't think that was the case.
"We'll have to look at it."
The game, which was watched by a crowd of about 5,000 fans at the Parc des Princes, was fractious even before that late brawl. There were 17 cards shown, a record for a Ligue 1 game in the 21st Century.
The injury-time drama started when Marseille's Benedetto nudged Paredes in the back, with the PSG midfielder then punching him to the ground before appearing to headbutt Alvaro.
A melee broke out, with Kurzawa and Amavi punching and kicking each other.
Benedetto and Paredes were shown second yellow cards, with Kurzawa and Amavi given straight reds.
The VAR review showed Neymar had punched Alvaro, a player he had been in a running battle with, and the forward was shown a straight red card, having earlier been booked.
Alvaro had also been involved in a big first-half flashpoint when he suggested Angel di Maria spat at him.
Di Maria was one of seven PSG players - along with Neymar - to test positive for coronavirus before the season started, although he had since provided a negative test.
What about the game itself?
Under any other circumstances the headlines would have been about a famous victory for Villas-Boas' Marseille over the French champions.
Marseille had last beaten PSG in Le Classique - one of French football's biggest rivalries - in 2011.
PSG - who were beaten 1-0 by promoted Lens on Thursday - have lost their opening two league matches for the first time in 36 years. They finished 13th that season.
The last time they lost their opening two fixtures without scoring was 1978.
Including the Champions League final against Bayern Munich only 21 days ago, that is three 1-0 defeats in a row for Thomas Tuchel's side.
Thauvin scored the only goal when he volleyed Dimitri Payet's free-kick in from close range. Di Maria and Benedetto both had goals disallowed for offside.
- Nightlife and coronavirus: How will clubbing survive?
- Jamie Oliver: Nine interesting facts about the famous chef
- 24FlorenziBooked at 13minsSubstituted forDagbaat 84'minutes
- 14BernatBooked at 52minsSubstituted forKurzawaat 84'minutesBooked at 90mins
- 21HerreraSubstituted forDraxlerat 61'minutes
- 6VerrattiSubstituted forParedesat 71'minutesBooked at 90mins
- 11Di MaríaBooked at 74mins
- 10NeymarBooked at 90mins
- 2H SakaiBooked at 7mins
- 3GonzálezBooked at 50mins
- 18AmaviBooked at 90mins
- 22GueyeBooked at 38minsSubstituted forBenedettoat 58'minutesBooked at 90mins
- 26ThauvinSubstituted forGermainat 77'minutes
- 27LopezBooked at 61minsSubstituted forStrootmanat 68'minutesBooked at 90mins
- 10PayetBooked at 11minsSubstituted forRadonjicat 77'minutes
- Jerome Brisard
- Shots on Target
Second Half ends, Paris Saint Germain 0, Marseille 1.
Neymar (Paris Saint Germain) is shown the red card for violent conduct.
VAR Decision: Card upgraded Neymar (Paris Saint Germain).
Second yellow card to Leandro Paredes (Paris Saint Germain).
Second yellow card to Darío Benedetto (Marseille).
Jordan Amavi (Marseille) is shown the red card for violent conduct.
Layvin Kurzawa (Paris Saint Germain) is shown the red card for violent conduct.
Leandro Paredes (Paris Saint Germain) wins a free kick in the defensive half.
Foul by Darío Benedetto (Marseille).
Foul by Leandro Paredes (Paris Saint Germain).
Darío Benedetto (Marseille) wins a free kick in the attacking half.
Offside, Paris Saint Germain. Neymar tries a through ball, but Pablo Sarabia is caught offside.
Kevin Strootman (Marseille) is shown the yellow card for a bad foul.
Pablo Sarabia (Paris Saint Germain) wins a free kick in the defensive half.
Foul by Kevin Strootman (Marseille).
Corner, Paris Saint Germain. Conceded by Duje Caleta-Car.
Attempt blocked. Leandro Paredes (Paris Saint Germain) right footed shot from outside the box is blocked.
Substitution, Paris Saint Germain. Colin Dagba replaces Alessandro Florenzi.
Substitution, Paris Saint Germain. Layvin Kurzawa replaces Juan Bernat.