Club Social y Deportivo San Antonio Unido, usually referred to as SAU is a football club located in the port city of San Antonio, Chile, situated in the Valparaíso Region.

The club was created in 1961, in order to bring the enjoyment of football to a growing port city that was experiencing a surge with internal migration.

In 1967 the club was known as San Antonio Unido Portuario (SAUP) in order to include the management company that was in charge of the port.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

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