Club Siero is a Spanish football team based in Pola de Siero, in the autonomous community of Asturias. Founded in 1916, it plays in Primera Asturfútbol, holding home matches at Estadio El Bayu, with a capacity of 5,000 seats.
Estadio El Bayu is a football stadium in Pola de Siero, Siero, and is the home of Club Siero.
The stadium was built in 2006 after the demolition of Estadio Luis Miranda, the old stadium in the village, for building the A-64 highway.
It was inaugurated on 31 October 2006 with a friendly football game between the Spain women's national team and a team composed by Spanish players.
