The Peru First Division, officially known as Liga 1, is the top flight of association football in Peru. It has been referred to as Torneo Descentralizado since 1966, when the first teams residing outside the Lima and Callao provinces were invited to compete in the inaugural league national competition.

Club Atlético Grau, more commonly known as Atlético Grau or simply, Grau, is a Peruvian professional football club based in the city of Piura. The club was founded in 1919 and plays in the Peruvian Primera División, the top tier of Peruvian football. It is one of the most popular clubs in northern Peru and the Piura region along with Alianza Atlético. The club's home ground is Estadio Miguel Grau Piura which has a capacity of 25,500. However, the club currently plays at Estadio Municipal de Bernal as Estadio Miguel Grau is being renovated.