Once considered among the top midfielders in world soccer, Paul Pogba’s career risks a premature ending after the Juventus player and France international tested positive for an elevated level of testosterone.

Italy’s anti-doping agency announced the failed drug test on Monday.

The exam was carried out after Juventus’ game at Udinese on August 20. Pogba did not play in the Serie A match but was on Juve’s bench.

Nado Italia, the anti-doping agency, said Pogba was suspended provisionally with immediate effect. Pending a trial and testing of a backup “B” sample, he risks a suspension of up to four years.

If the back-up sample confirms the positive test, the 30-year-old Pogba could get a lesser ban if he cooperates with authorities.

While there was no immediate comment from Pogba, Juventus said it “reserves the right to consider the next procedural steps”.

It is another negative note for a player who has been bothered by injuries ever since rejoining Juventus from Manchester United a little more than a year ago. He was ruled out of France’s run to the World Cup final last year due to a knee injury and played in only six Serie A matches for Juventus last season.