Soviet Union | European Union | Union Army | rugby union | Union | Santa Cruz de la Sierra | Santa Cruz | Santa Barbara, California | Santa Fe | Santa Fe, New Mexico | Santa Barbara | International Telecommunication Union | Santa Claus | trade union | Santa Catarina (state) | Union (American Civil War) | Santa Catarina | University of California, Santa Cruz | Union Pacific Railroad | England national rugby union team | American Civil Liberties Union | Wales national rugby union team | New Zealand national rugby union team | University of California, Santa Barbara | Ireland national rugby union team | Santa Cruz, California | Santa Ana | Western Union | Santa Ana, California | Scotland national rugby union team |
Born in Arocena, Santa Fe Province, Acosta started playing professionally at Unión de Santa Fe, making his top division debut one month shy of his 20th birthday, in a 0–0 home draw against Argentinos Juniors.
After several seasons at Unión de Santa Fe he took over at Paraguayan side Olimpia, from the capital city of Asunción, winning the Copa Libertadores in 2002.