Hamraoui was brutally attacked last year, following a dinner in association with PSG. The midfielder was dragged from the car she was in by two masked men and was left requiring stitches in her hands and legs.
Diallo, who was driving the car at the time, was arrested after the incident but proclaimed her innocence and was released without charge.
A statement from Diallo, released by her lawyer in November, rubbished a “totally artificial suggestion of a rivalry between her and Mrs Kheira Hamraoui that would explain why she would target her team-mate.”
It added: “This theory does not reflect at all the reality of their relationship.”
What’s happened to Diallo?
On Friday, The Versailles prosecutor’s office said Diallo is being investigated on charges of serious bodily harm and aggravated violence. She is, therefore, being held temporarily while she awaits a court hearing regarding the pretrial detention.
Four men have also been arrested in connection with the assault on Hamraoui.
“All four alleged Diallo was the instigator of the assault, in order to allow her to be given the place of the victim [in the PSG team] in future games,” the prosecutor’s office said.
Diallo reportedly quits football
L’Equipe stated that many players were shocked that the club decided not to extend Diallo’s contract, despite making 13 appearances for the club since the initial allegations were made.
During her time at PSG, the midfielder also spent time on loan at the Utah Royals and Atletico Madrid.
Diallo, who joined PSG in 2016, made more than 75 appearances for the club.
The 27-year-old has also been capped seven times for the French national team –– scoring her only international goal in an 8-0 win against Nigeria back in 2018.
It has been alleged that Diallo’s motivation for supposedly attacking her teammate is because both play the same role and were thus competing for the same position for club and country.
The French international has made 39 appearances for the national side and is currently in her second spell with PSG.
The 32-year-old has won the Women’s Champions League twice with Lyon and once with Barcelona.
Hamraoui was also named in the Women’s Champions League Squad of the Season for the 2019/20 campaign.
However, despite returning to action earlier this year, she has not featured for PSG so far this season.