Di Maria has been banned for four matches for his part in a hot-tempered Ligue 1 defeat by Marseille on 13 September.
Di Maria was accused of spitting at Marseille defender Alvaro Gonzalez during a match.
The Argentina international footballer was one of seven PSG players to test positive for coronavirus before the season.
The league did not confirm his ban was for spitting.
Former Manchester United winger Di Maria had returned a negative Covid-19 test before the French top-flight season began.