Acuna is out of the lineup for Game 2 of Sunday's doubleheader in Washington.
Acuna served as the designated hitter in the matinee and went 1-for-4 with a strikeout. The 25-year-old missed two contests last weekend with calf tightness, so it's not a major surprise Atlanta will start him for only one game of the twin bill. Kevin Pillar will start in right field in Game 2.