Acuna was removed from Tuesday's game against Kansas City with right Achilles tightness.
Acuna seemed unable to run at a full sprint in the outfield during the sixth inning, and the decision to pull him was made after he couldn't track down a flyball off the bat of Vinnie Pasquantino that resulted in a ground-rule double. Atlanta has labeled Acuna's injury as just tightness, so he doesn't seem to be dealing with a severe injury, but he may still need a day or two off to recover.