Estádio Caio Martins, sometimes called Estádio Mestre Ziza, is a football stadium in Niterói, Rio de Janeiro state, Brazil. The stadium holds 15,000 people. It was built in 1941. The stadium is owned by the Rio de Janeiro state government. The stadium's name honors Caio Vianna Martins. In 1938 15-year-old Scout Martins, along with many other passengers, was seriously injured in a train accident, but refused the offer of a stretcher, saying that others needed it more than he.