The tournament is the second most prestigious run by the South American Football Confederation (CONMEBOL) pitting South American clubs from across the continent against each other.
The winner of the tournament is automatically qualified for the Copa Libertadores, the region's premier championship tournament.
Forty-seven teams will compete in the 2013 edition of the Sudamericana withBolivia, Ecuador, Chile, Colombia, Paraguay, Peru, Uruguay and Venezuela with four representatives each, while Argentina will field 6 teams and Brazil 8. Brazil's Sao Paulo are the defending champs.
"Important teams or teams making their debut, and the hope is to play in international cups. I think the enthusiasm they have is interesting because they come out of local tournaments qualified for an important cup," CONMEBOLPresident Eugenio Figueredo Aguerre said.
"The Argentine teams that got to this point got here by being in a good moment with a good squad, so this is left to the randomness of the draw. Just to participate, to be part of something which is really important for our club, to be in a South American tournament again and with the hopes of doing well in the Copa Sudamericana which begins in August," the president of Lanus, Alejandro Maron said following the draw.
The Brazilian sides, aside from Sao Paulo, have yet to be determined for the upcoming tournament which has not yet been given an official start date.