Antonacci is out of the lineup for Wednesday's game against the Rangers.
Collins is out of the lineup for Wednesday's game against the Blue Jays.
Martin (finger) is scheduled to start his rehab assignment Thursday, James Fegan of the Chicago Sun-Times reports.
Caglianone (ankle) will start in right field and bat third in Wednesday's game against the Blue Jays.
Massey (head) is out of the lineup for Wednesday's game against the Blue Jays.
Means (Achilles) will begin a rehab assignment with High-A Quad Cities on Wednesday.
Mears (shoulder) was diagnosed with thoracic outlet syndrome Saturday and will undergo season-ending surgery, MLB.com reports.
Murphy (forearm) began a rehab assignment with Triple-A Charlotte on Tuesday, pitching around two hits in a scoreless inning.
Meidroth went 3-for-5 with an RBI on Tuesday against the Rangers.
Antonacci went 2-for-4 with a walk, a double, a triple, an RBI and three runs scored Tuesday against the Rangers.
