The French national soccer player Aminata Diallo has been taken into custody in connection with a violent attack on a teammate.
This was confirmed by Diallo's club, French champions Paris St-Germain, on Wednesday.
PSG did not provide the victim's name.
According to media reports and the AFP news agency, it is Kheira Hamraoui, who also plays in the French selection.
According to the specialist newspaper "L'Equipe", she is said to have gone home with Diallo after a club dinner last Thursday.
According to this, Hamraoui was dragged out of the car by two masked men and attacked with a metal bar.
She was beaten on the legs and hands.
Diallo is said to have sat as a passenger in the car.
The case brings back memories of one of the most spectacular sports scandals: In 1994, the American figure skater Nancy Kerrigan was injured in the knee by an assassin with an iron bar.
The client was Jeff Gillooly, the husband of Kerrigan's fiercest rival Tonya Harding at the time.
It has not yet been clarified whether Diallo was behind the attack on Hamraoui.
There is no charge.
PSG condemned the attack "strongly" and referred to the ongoing investigation.
German national player Sara Däbritz is also under contract with PSG.
Midfielder Hamraoui was missing in the group game of the Champions League against Real Madrid (4-0) on Tuesday evening - according to PSG “for personal reasons.” Diallo, like Däbritz, was in the starting line-up.