A Primera División team plays in which city that is located in the Cyuo region of Argentina?
San Martín de San Juan Club Atlético San Martín, mostly known as San Martín de San Juan, is an Argentine football club from the city of San Juan. The team currently plays in the Primera División, the first division of the Argentine football league system.
Gimnasia y Esgrima de Concepción del Uruguay Club Gimnasia y Esgrima de Concepción del Uruguay is an Argentine football club from the city of Concepción del Uruguay in Entre Ríos Province. The team currently plays in Torneo Argentino A, the regionalised third division of the Argentine football league system.