Rubuta ci gaba don wannan sakin layi - Díaz ya buga wasan ƙwallon ƙafa na kulob don Club Atlético Rosario Central, inda ya lashe wasu taken gida da kofin ƙasa a 1920. Ya wakilci Argentina a lokuta 9 tsakanin 1926 da 1928. Ya kasance memba na tawagar Argentina, wanda ya lashe gasar zakarun Amurka ta Kudu ta 1927
da lambar azurfa a gasar kwallon kafa ta Olympics ta 1928.