The Estadio Jose Amalfitani is a stadium in the city of Buenos Aires, Argentina, and is home of Velez Sarsfield from the Argentine First Division. Inside Argentina, a common nickname for the stadium is El Fortin ("The Fort"); outside the country, the stadium is frequently called Velez Sarsfield after its primary occupant.
The stadium was built in 1947 and later remodeled in preparation for the 1978 FIFA World Cup. It has capacity for 49,540 spectators although it doesn't provide seating for all of them, like many Argentine stadiums.
It is also used for rugby union matches as well as music concerts. The Argentina national rugby union team frequently play Test matches here.