Guatemalan ref Carlos Batres (who was a World Cup ref) From sportsya.com (spanish site) Arbitro guatemalteco para Argentina-EEUU "El árbitro mundialista guatemalteco Carlos Batres fue invitado para dirigir el partido amistoso que disputarán las selecciones de fútbol de Estados Unidos y Argentina el próximo 8 de febrero."
Carlos is a good referee. He is strict and doesn't allow a lot of nonsense. He did have one bad game officiating in Korea. Forgot the specifics but he missed a penalty or serious foul. As a result, he did not make the final cut of referees.