Anthony (back) is out of the lineup for Friday's game against the Orioles, Rob Bradford of WEEI.com reports.
The 21-year-old outfielder will sit for a third straight game Friday due to upper-back tightness, which first surfaced on a swing during Tuesday's loss to the Yankees. According to Ian Browne of MLB.com, Anthony is showing improvement and could see the field at some point this weekend in Baltimore.