Matt Joyce left Tuesday's game against the Blue Jays with right hamstring tightness.
Hiroyuki Nakajima (hamstring) is expected to be added to the major league roster when his 20-day rehab window expires on Wednesday.
Jemile Weeks has been playing some shortstop at Triple-A Sacramento.
Kevin Youkilis (back) took three at-bats in an extended spring training game on Tuesday.
Alexi Ogando (biceps) has been playing catch but said he is only throwing around "40 percent."
Chris Narveson (finger) is scheduled to face live hitters on Friday.
Tom Gorzelanny (shoulder) is expected to be activated from the disabled list on Friday.
The Blue Jays are considering calling up pitching prospect Sean Nolin to start on Friday against the Orioles.