LAUSANNE, Switzerland — Peru captain Paolo Guerrero could miss the World Cup if the World Anti-Doping Agency's appeal to increase his ban for a positive doping test is successful.

The Court of Arbitration for Sport says WADA wants a ban of at least one year for Peru's record goal scorer.

Guerrero separately appealed to CAS to overturn his six-month ban by FIFA.

CAS says the appeal hearing will be heard on May 3.

Guerrero tested positive for cocaine metabolites at a World Cup qualifying game against Argentina in October. He blames drinking tea contaminated with coca leaves.

FIFA initially suspended Guerrero for one year through Nov. 3, but it was reduced to six months on appeal, clearing him to play at the World Cup in June.