Mezue ahịrịokwu na-esonụ: O setịpụrụ ihe ndekọ onwe onye kachasị mma nke 8057 na obodo ya nke Havana na March 2008, na-agbaji ihe mgbochi 8000 maka oge mbụ. Ihe mbụ Díaz mere n'ụwa niile bụ n'oge na-adịghị anya na 2008 Summer Olympics, mana ọ naghị asọmpi na ọkachamara ya kama ọ bụ akụkụ nke ndị otu 4 × 400 mita nke Cuba na Yunier Pérez, William Collazo na Omar Cisneros. Ndị otu ahụ enweghị ike ịga n'ihu karịa ọkwa nke asọmpi ahụ. O ritere ihe nrite mbụ ya n'afọ na-eso ya na Havana na
2009 Central American na Caribbean Championships na Athletics, na-agwụcha dị ka onye na-agba ọsọ n'azụ Leonel Suárez ma na-achịkwa akara karịa 8000 isi maka oge nke abụọ na ọrụ ya na ngụkọta nke 8013.