Mesoraco is not in the lineup Thursday against the Phillies, MLB.com's Mark Sheldon reports.
Mesoraco was back in the lineup Wednesday, despite taking a slight accidental shot to the head by Maikel Franco's bat Monday. Although he appears to have been cleared of concussion symptoms, the 27-year-old backstop will get regular rest for a day game. Tucker Barnhart will be called upon to take over catching duties.