Holliday is not in the lineup for Monday's game in Boston, Jake Rill of MLB.com reports.
After getting off to a fast start initially upon his promotion from Triple-A Norfolk on July 31, Holliday has stumbled to a .139/.208/.200 batting line with a 34.7 percent strikeout rate over his last 20 games. Livan Soto will start at second base and bat ninth for the Orioles on Monday.