Panchito Mendoza, ex-Chivas USA midfielder, is listed with US-Mexico dual nationality by transfermarkt: http://www.transfermarkt.co.uk/en/francisco-mendoza/leistungsdaten-detail/spieler_39480.html Now 27yo with CD Leones Negros de la U. de G. (The University of Guadalajara Black Lions if you prefer...), in Mexico's Liga de Ascenso (2nd tier). He's bounced around a few clubs in Mexico & most recently Costa Rica, including the Chivas mothership. He represented Mexico's U-17s. There have been rumors in the past of him getting US citizenship & getting called up to either US or Mexico. A key question is whether he actually got US citizenship.