Triple-A Las Vegas placed Muncy on the 7-day injured list Aug. 23 with an unspecified injury.
After missing nearly two months of game action with a hand injury earlier this summer, Muncy returned to the Las Vegas lineup July 19, only to go down with another injury just over a month later. Muncy had been raking at the plate prior to his latest setback on the health front, slashing .280/.371/.530 with six home runs, five doubles and a triple in 27 games following his initial return from the IL.