Last spring, the Azteca Stadium hired a field consultant recommended by the NFL who has reviewed the field. He installed a new pipe drainage system, sand gravel base and irrigation system. In mid-June there was new grass
No concerts were planned at the Azteca Stadium from August to November, and the stadium has not had football games since November 2nd. Last year, soccer games and concerts, paired with a significant amount of rain, left the field "a disaster", according to sources.