Juventus midfielder Paul Pogba has tested positive for testosterone in a counter-analysis on a second sample, Sky Sports and ANSA news agency reported on Friday, without citing a source.
Pogba was provisionally suspended last month after a test, performed after Juve's 3-0 Serie A season-opening victory at Udinese on Aug. 20, detected testosterone, a hormone that increases athletes' endurance.
His agent said at the time that Pogba had never intended to break the rules.
Reuters has contacted Italy's national anti-doping (NADO Italia) tribunal for comment. If found guilty of doping, Pogba could be suspended for between two and four years.
The 30-year-old Pogba was an unused substitute in the win at Udinese.