MEXICO CITY - Hoping to improve its chance of winning the Copa America, Mexico's football federation is asking it be allowed to field its full national team in the South American championship, rather than a youth team.

As a member of CONCACAF, which governs football in North and Central America and the Caribbean, Mexico has played in the Copa America as a guest team with underage players, giving it little chance of winning the title against the likes of Brazil and Argentina.

Mexico lost its three group matches in last year's Copa America, won by Uruguay.

Mexican federation general secretary Decio De Maria said on Thursday the body was appealing to CONCACAF to change the rules under which Mexico is allowed to play in the Copa.