Career
Sosa began his professional career in Paraguay, and had a spell with Sportivo Luqueño. He had a brief loan spell with Emelec in Serie A de Ecuador during 1993. Sosa finished his career playing in Bolivia with Club San José, The Strongest and Unión Central.
Sosa made two appearances for the senior Paraguay national football team during 1999.
He also played for Paraguay at the 1992 Summer Olympics in Barcelona.