Hi,
I was checking the boxing record and Mexican boxer Rodolfo "Chango" Casanova and noticed some potential errors in his record. A number of his fights between 1938 and 1940 are said to have taken place at the Arena Nacional, but the Arena Nacional burnt down in February of 1937 and was never rebuilt (Several Mexico City newspapers attest to this). Just giving you a heads up.
Take care,
Steve Allen