Lucas Domínguez

In 2008, he represented Chile U23 at the 2008 Inter Continental Cup in Malaysia. Domínguez made his debut for Chilean senior team on 22 January 2011 against the United States at The Home Depot Center in Carson. He came on as a second-half substitute, replacing Daúd Gazale after 71 minutes.

Audax Italiano

After of many years in Audax Italiano lower divisions, Domínguez was promoted to the first team of the club in June 2008. Domínguez he officially debut for the club in the fourth round of the Copa Chile 2008–09 against Santiago Wanderers, aged 19, in a 2–2 draw on 23 October. In the same match, he scored his first senior goal for Audax in the 51st minute. On 9 March 2009, he made his Chilean Primera Division debut, playing the 90 minutes in a 3–3 draw against Municipal Iquique. In the next season, Domínguez was a frequently player in Audax's starting lineup, being a key player in the club, devoting in his position. On 18 March 2010, he scored his first competitive goal for Primera Division in a 5–1 victory over Ñublense at Nelson Oyarzún Stadium. Domínguez made an important role as defender in the 3–2 victory of Audax against Universidad Católica, he also scored the momentary draw 1–1 with an impressive header.

He lives with his family in Pirque and practices playing the piano to relax.