Brazil and Argentina have been seeded alongside hosts Chile ahead of the draw for next summer's Copa America.
The group stage draw will be made in Vina del Mar on November 24, but the traditional giants will be kept apart until at least the quarter-final stage after being allocated in the three-team pot of highest seeds.
However, holders Uruguay could be paired with either after being selected in Pot 2 alongside World Cup quarter-finalists Colombia and regular invitees Mexico.Pot 3 consists of Ecuador, who qualified for the World Cup but could not progress beyond the group phase, alongside two-time winners Peru and Paraguay.
And Pot 4 contains the last two South American sides, Venezuela and Bolivia, plus Copa America newcomers Jamaica.
After the round-robin group phase, the top two teams from each section will qualify for the quarter-finals along with the two best third-placed teams, at which point the tournament takes on a standard knockout format.
The competition kicks off with Chile in action in the capital Santiago on Thursday, June 11, with the final group matches scheduled for Sunday, June 21. The knockout rounds begin on Wednesday, June 24 ahead of the final on Saturday, July 4.