LAUSANNE, Switzerland --
The World Anti-Doping Agency says it appealed to the Court of Arbitration for Sport against a potentially lenient doping ban for Brazil and Shakhtar Donetsk midfielder Fred.
Fred is serving a one-year ban applied by South American soccer body CONMEBOL which effectively lets him miss less than four months of matches.
The 23-year-old player tested positive for the diuretic hydrochlorothiazide at the 2015 Copa America in Chile.
Fred continued playing for Shakhtar, including 10 Champions League qualifying and group-stage matches, while CONMEBOL processed his case.
When CONMEBOL ruled in December, the ban was backdated to June and applied only to its competitions.
FIFA extended the ban worldwide in February when the Ukraine league was in a three-month midwinter break.
WADA declined to specify which sanction it requested from CAS.
