The league's two top teams will meet in the Eastern Conference finals while the Portland Timbers learned their opponents in the West.
Miguel Almiron scored a stunning free kick on Sunday while Josef Martinez added a brace to help Atlanta United take down New York City FC in their MLS playoff clash.
Atlanta put together a 3-1 win on the day and a 4-1 aggregate victory over NYCFC, booking a date in the Eastern Conference final against the New York Red Bulls.
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The Paraguayan star's set piece highlight came moments before halftime, as Almiron curled a shot past the wall and a diving Sean Johnson to give Atlanta a 2-0 lead on the day and a 3-0 advantage on aggregate.