In a video shared on Mathias' social media accounts, including Twitter, the 32-year-old says he will share the so-called 'revelations' because Pogba's team-mates and sponsors "deserve to know certain things."
It is not clear what the World Cup winner has done to upset his older brother, who has played for the likes of Wrexham, Crawley Town and Partick Thistle during a 13-year career in football.
Here is what Mathias said in the video that has since picked up over 1.2 million views on Twitter.
"The French, English, Italian and Spanish public, in other words the whole world, as well as my brother's fans, and even more so the French team and Juventus, my brother's team-mates and his sponsors deserve to know certain things," he said.
"In order to make an informed decision if he deserves the admiration, respect and love of the public.
"If he deserves his place in the French team and the honor of playing in the World Cup. If he deserves to be a starter at Juventus.
"If he is a trustworthy person, that any player deserves to have at his side."
Mathias posted a number of hashtag's in the caption of his post on TikTok, including the name of Paul Pogba's agent and lawyer, Rafaela Pimenta.
The former Sparta Rotterdam forward also mentions France international and Paris Saint-Germain forward Kylian Mbappe in his viral video, claiming he has "important things" to say about the striker.
"I will tell you very important things about him and there will be elements and many testimonies to confirm my words."
Paul Pogba's camp have since released a statement, hours after Mathias Pogba released the video on social media.
"Mathias Pogba's recent statements on social media are unfortunately not a surprise," it read via French publication Jeanmarcmorandini. "They come on top of threats and organized gang extortion attempts against Paul Pogba."
Statement from Paul Pogba's camp after latest drama: 'Mathias Pogba's recent statements on social media are unfortunately not a surprise. They come on top of threats and organised gang extortion attempts against Paul Pogba'https://t.co/zz4G1yNCuz— Sport Witness (@Sport_Witness) August 28, 2022
Featured Image Credit: TikTok/@mathiaspogba - Alamy
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