Alvarez is not in Wednesday's lineup against the Red Sox, Roch Kubatko of MASN Sports reports.
The left-handed hitting Alvarez was held out of the lineup the last three games as the Orioles faced a pair of southpaws in that span, but he'll remain out for a fourth straight day even with righty Rick Porcello opposing the Baltimore lineup. Mark Trumbo will get another turn as the team's DH on Wednesday.