The Washington Nationals and Atlanta Braves will play a double-header on Saturday at Nationals Park in Washington, D.C. Both teams have announced the lineups for the afternoon game via their official Twitter feeds.

First, the lineups for the Washington Nationals:

#Nats Game 1 Lineup: Lombo LF, Harper CF, Zim 3B, Morse RF, LaRoche 1B, Desmond SS, Espinosa 2B, Flores C, Jackson RHP

— Washington Nationals (@Nationals) July 21, 2012

And now the lineups for the visiting Atlanta Braves:

Today's Game 1 lineup at WSH (1:05, PTV/680AM/BRN): Bourn 8 Prado 7 Heyward 9 Freeman 3 McCann 2 Uggla 4 Francisco 5 Janish 6 Sheets 1

— Atlanta Braves (@Braves) July 21, 2012

The first pitch of the afternoon game will be at 1:05 p.m. ET.

For all things Nationals, check out Federal Baseball. For the Atlanta Braves perspective, head over to Talking Chop. Stay tuned to this StoryStream for updates throughout the series.