Mathias Pogba, 32, has been in custody since Saturday night, according to Mathias’ lawyer Yassine Bouzrou.
“We will challenge this decision and ask for his release,” Bouzrou told CNN on Sunday.
The Paris Prosecutor’s Office also confirmed to CNN on Sunday that Mathias Pogba has been remanded in custody.
Paul Pogba’s statement comes after his brother released a series of videos on Instagram in English, French, Spanish and Italian in which he said he would make “big revelations” about the behavior of his brother and Rafaela Pimenta, his agent.
Paul Pogba’s statement, signed by his lawyers, his mother Yeo Moriba and Pimenta, said: “Unfortunately, Mathias Pogba’s recent social media posts are not surprising and follow other attempts to extort Paul Pogba over a long period of time.
“The incidents were reported to the Italian and French police a month ago and there will be no further comment on the current investigations.”
He denied the accusations against him in tweets.
In August, a spokesperson for the prosecutor’s office told CNN that an investigation was launched that month into “extortion in an organized group and attempted extortion in an organized group.”
Paul Pogba, 29, returned to Juventus in July after six years at Manchester United in the English Premier League. He was a member of the team that won the World Cup in France in 2018.
In August, Italian police confirmed to CNN that they were not investigating the allegations.
CNN’s Matt Foster and Sammy Mngqosini contributed to this report.