Peruvian and international striker Paolo Guerrero has seen his final appeal against a drug ban rejected by the Swiss Federal Court (BGER).
The BGER confirmed the decision on Monday, which means that Guerrero's ban will be maintained and he will not be available until April 2019.
Guerrero was suspended for one year by FIFA after testing positive for benzoylecgonine , a metabolite of cocaine, after the qualifying match for the FIFA World Cup against Argentina in October 2017.
Initially, the suspension was cut in half, but the World Anti-Doping Agency successfully argued before the Court of Arbitration Deportivo that the ban was insufficient and extended to 14 months.
However, Guerrero was authorized to captain Peru in the 2018 World Cup after a temporary change approved the lifting of his ban.
Guerrero signed a three-year contract at Internacional in August after his contract with Flamengo expired, but he has not played for the club yet due to the suspension.
ternational are tied in points with Palmeiras at the top of the Brazilian Championship after 27 matches.