O'Neill was scratched from the lineup for Friday's game versus the Nationals due to left shoulder discomfort, Andy Kostka of TheBaltimoreBanner.com reports.

EDGE Analysis

The 29-year-old was activated last Friday after a two-week stay on the injured list due to neck inflammation, and he's now battling a shoulder issue. O'Neill had the discomfort surface while in the batting cage earlier this week and should be considered day-to-day.