The younger brother of Naby Keita, Petit, has been training at Liverpool's academy after leaving his club in Germany.
Sky Sports News reports that the 17-year-old forward is not on trial with the Reds but has been using the club's facilities after departing German fifth division outfit Inter Leipzig.
Galatasaray make Niasse priority
Galatasaray have made Everton forward Oumar Niasse their transfer priority in January, according to Fanatik.
Editors' Picks
The Senegal international leads the Turkish champions' shortlist that include Liverpool's Divock Origi and Tianjin Quanjian's Anthony Modeste.