Description Available in: The Acereros de Monclova (English: Monclova Steelers) are a professional baseball team in the Mexican League based in Monclova, Coahuila, Mexico. Their home ballpark is Estadio de Béisbol Monclova, which has a capacity of 11,000 people. The Acereros replaced the Mineros de Coahuila in the 1976 season.