 Once hailed as one of Club América's (and Mexico's) top footballing prospects, Fernández disappeared from the sport after a brief spell in FC Barcelona's youth squad, only to resurface a few years later for América.His talent was soon recognized by coach Manuel Lapuente, and promoted him to the senior squad in late 2002.His professional debut came during the Clausura 2003 season, on 25 January 2003; in a game against San Luis.