Vinaya Habosi, recalled after being investigated for domestic violence, scored as Racing 92 beat Vannes in the Top 14 on Saturday, while Hugo Auradou started his first game for Pau since being accused of rape in Argentina.
Habosi's first-half contribution came less than three weeks after he was arrested following an argument with his wife.
The 24-year-old has been disciplined by the Parisian club and ordered to attend a domestic violence course.
The Fijian winger scored as Racing came from behind to win 27-24. A second win in five games this season reduced the pressure on Racing's coach in ex-England and Leinster boss Stuart Lancaster.
Vannes, in their maiden top-flight season, stay bottom after their fourth defeat of the campaign.
In Perpignan, France lock Auradou started for Pau, a month after he returned home after being accused of raping a woman in Argentina the night after a Test match.
The 21-year-old was arrested along with La Rochelle flanker Oscar Jegou in July after winning their first caps for France against the Pumas in Mendoza.
A woman alleged the players assaulted her in a hotel room after a night out following the match.
The men deny the accusation, saying the sex had been consensual. On Friday, Argentine prosecutors recommended the dismissing the rape charges against the two forwards.
Jegou has returned to training with La Rochelle but is not involved in their game against Lyon on Saturday.
Later on, Saturday, Antoine Dupont's former side Castres welcome the superstar scrum-half's current club Toulouse, but the 27-year-old is absent.
He has spent the final week of his post-Olympic gold medal holidays in the United States where he met Argentina football icon Lionel Messi in Miami.