 Martínez akaita mutambo wake wekutanga kuHonduras muna Chikunguru 2001 mumutambo wehushamwari neEcuador, umo akawana chinangwa pakarepo, uye akawana huwandu hwe35 caps, achiwana 16 zvinangwa. Akamirira nyika yake mumitambo gumi nemimwe yekukodzera yeFIFA World Cup uye akatamba pa2007 FIFA World Cup.uye 2009 UNCAF Nations Cups Kubudirira kwake kwenyika yose kwakauya panguva ye2001 Copa América, apo Honduras yakashamisika yakaguma yechitatu uye Martínez akawana zvibodzwa zviviri mukukunda kwenhoroondo pamusoro peWorld Cup runners-up Brazil. 