|Full name||Carlos Sebastián Sosa Silva|
|Date of birth||19 August 1986|
|Place of birth||Montevideo, Uruguay|
|Height||1.84 m (6 ft 0 in)|
|2008||→ Central Español (loan)||28||(0)|
|2016||→ Zacatecas (loan)||0||(0)|
|2016||→ Rosario Central (loan)||15||(0)|
|2017||→ Morelia (loan)||4||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 16 February 2021|
Upon his return, Sosa was the second choice goalkeeper behind former Argentine international Pablo Cavallero, until coach Julio Ribas chose him for the starting eleven of Peñarol for the 2009–10 Uruguayan Primera División season. During that season, Sosa helped Peñarol to win the league title. Afterwards, Sosa was a regular in the Peñarol team that also reached the final of the 2011 Copa Libertadores (where his team was defeated by Santos.
In July 2011, the Uruguayan goalkeeper signed for Argentine giants Boca Juniors. During his one-year stay at Boca, Sosa was mostly a substitute for Agustín Orión, but won with the team the 2011 Apertura and the 2011–12 Copa Argentina.
Subsequently, Sosa joined Vélez Sársfield also of Argentina. There he again the second choice goalkeeper (behind Germán Montoya) at first, but then became a regular starter and played 9 games in his team's 2012 Inicial winning campaign. Sosa was also a starter in Vélez victories in the 2012–13 Superfinal and the 2013.
In June 2015, after his contract with Vélez ended, he joined Pachuca.
In January 2017, Sosa joined Monarcas Morelia on loan from Pachuca. He was the second choice goalkeeper behind Carlos Felipe Rodriguez, for the majority of the season as Morelia battled relegation. After making a great impression that culminated with a Copa MX runner up finish, Sosa was promoted to first choice goalkeeper for the last 2 games of the season as Morelia inched away from relegation.
Sosa has played for the Uruguay national under-17 football team.
- Boca Juniors
- Vélez Sársfield
- "Initial '12 statistics". Argentine Soccer. Retrieved 2013-02-10.