Antonio Ariel Aguero is a professional Argentine football player who plays as a defender. Ariel started his career in 2002 at Independiente Villa Obrera, a lower division side, in Argentina. He played there for one season and moved to San Martin for a season. However, he failed to make any impact and came back to the lower division to play on loan for Atletico Juventud Allianza for a season. In 2005, Ariel went back to San Martin after his loan period for another attempt and this time ‘round, he spent three wonderful seasons at the club, prompting fellow Primera Division side, Gimnasia La Plata to pick him up.