|Date of birth||May 4, 1979|
|Place of birth||Buenos Aires, Argentina|
|Height||5 ft 10 in (1.78 m)|
|Ferro Carril Oeste|
|1999–2000||Ferro Carril Oeste||17||(3)|
|2002–2003||San Martín (M)||21||(4)|
|2010–2012||SHB Đà Nẵng||37||(10)|
|2013–||Ferro Carril Oeste||9||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 19 April 2015.
Hernández began his professional career with the Primera División side Ferro Carril Oeste in 1999. After a year with them he moved to Colón de Santa Fe for a season. In 2002, he was signed by Italian club U.S. Cremonese. After a short spell with them he ended up back in Argentina playing for National B Division teams San Martín de Mendoza and Huracán until 2005 when he was picked up by Chilean powerhouse Cobreloa.
On March 30, 2006, he was signed by the Colorado Rapids. He started his first game with the club on April 2 against the Columbus Crew and scored 8 goals for the club. He was traded to the Columbus Crew on February 27, 2008 for Tim Ward. He was waived on June 27, 2008.