Edgar Esteban Dueñas Peñaflor (born 5 March 1983) is a Mexican former professional footballer who played as a defender.
During the 2011 CONCACAF Gold Cup, Dueñas, and four other members of the Mexico national team, tested positive for the banned substance of Clenbuterol and were withdrawn from the squad. Later, all players were exonerated as FIFA determined that the accused had ingested the banned substance through contaminated meat that had been inadvertently served during a pre-tournament training camp.
However, World Anti-Doping Agency appealed to the Court of Arbitration for Sport to request a ban. On 12 October 2011 the request was withdrawn when the full record was made available to WADA.
As of match played 26 January 2012
Primera División de México: Apertura 2005, Apertura 2008, Bicentenario 2010
Primera División de México Center back of the tournament: Bicentenario 2010
Édgar Dueñas – Liga MX stats at MedioTiempo.com (archived) (in Spanish)
Édgar Dueñas at National-Football-Teams.com