The Washington Nationals, in the postseason for the first time since 1933, now know their opponent in the 2012 National League Division series, after the St. Louis Cardinals defeated the Atlanta Braves 6-3 on Friday night.

Game 1 of the NLDS will be played Sunday in St. Louis, with first pitch scheduled for 3:07 p.m. ET.

Lefty Gio Gonzalez (21-8, 2.89 ERA) will be on the mound for Washington, facing Adam Wainwright (14-13, 3.94 ERA) of the Cardinals.

During Saturday's playoff press conference, the full rotations for the NLDS were announced. Washington's hurlers, via the team's official twitter feed:

Davey announces #Nats rotation: Gio, Zimmermann, Jackson, Detwiler

— Washington Nationals (@Nationals) October 6, 2012

The St. Louis rotation, via Mel Antonen of MASN:

#Cardinals' rotation is Wainwright, Garcia, Carpenter, Lohse. Garcia pitches well at home. Carpenter experience works in Game 3#mlb

— Mel Antonen (@MelAntonen) October 6, 2012

Something else of note, via Amanda Comak of the Washington Times: St. Louis will have only one lefthander in the bullpen for the NLDS.

The Nationals won the season series with the defending World Series champion Cardinals, 4-3.