Moustakas is not in the lineup Tuesday against the Nationals, Josh Vernier of 610 Sports Radio reports.
It's a bit surprising, as this will be the second day in a row Moustakas takes a seat, and Tuesday's matchup comes against the right-handed Tanner Roark. There's no indication as of now that anything is wrong though, and Christian Colon will once again draw the start at the hot corner in his stead.