Carlos Adolfo "Lucho" Sosa (21 July 1919 – 2 March 2009)[1] was an Argentine footballer who played as a midfielder.

[2] Sosa is considered one of the best right halves in the history of Argentine football, apart from being an emblematic player of Boca Juniors during the 1940s.

[3] At his arrival to Boca Juniors, Sosa played several matches in lower divisions until he was promoted to the first squad in 1941, being part of a memorable midfield line along with Ernesto Lazzatti and Natalio Pescia.

[6] After retiring from football, he became manager, coaching Boca Juniors in 1960, but after matchday 10 of the championship in July – 4 wins, 5 draws, 1 defeat, 17–9 goals – he resigned because of the unsuccessful results.

[4] Sosa was a skillful player with good ball control, which allowed him to advance to the rival goal in attacking positions.

Some versions state that he considered Sosa "dribbled excessively", preferring more aggressive players for defensive positions, such as Norberto Yácono or Juan Carlos Fonda.