A professional football player from Brazil, Lucio Carlos Cajueiro Souza plays as a midfielder on the left side. An extremely versatile player, Lucio is also known to play as the left-back, when required. Lucio began his playing career at the youth academy at Unibol Pernambucano Futebol Clube in 1997. His professional debut would, however, come with Esporte Clube Sao Bento in 2000, when he graduated from the youth academy.
After 12 games and 2 goals for Sao Bento, Lucio moved on and signed up with Soceidade Esportivo do Gama where he played just 15 games before moving back to Sao Bento for another 10 games to end the season. In the final days of 2001, Lucio moved into the Esporte Clube XV de Piracicaba and after just 6 games, he moved to Ituano Futebol Clube.
Lucio won the 2002 Sao Paulo State Championship title with Ituano, playing 27 games and scoring 3 times along the way. He moved to Palmeiras in 2003, and over the next four seasons, with two loan spells in the middle, played around 58 games and scored 4 times. He went on loan to Sao Paulo in 2006, winning the Brazilian Serie A title with the side, before playing with Gremio, in 2007, and won the 2007 Rio Grande do Sul title.
In 2007, Europe came calling for Lucio and he signed up with Hertha Berlin but immediately after signing up, with just a handful of games under his belt, Lucio ended up injuring his knee seriously. He was unable to play throughout 2008 and in 2009, was loaned out to Gremio to help him get back to fitness slowly. However, at the end of 2010, he was allowed to sign with Gremio, full-time, on a free transfer.
After starting every single game for Gremio, Lucio made his way to Clube Nautico Capibaribe in 2012, to start a new chapter in a long career.