Pirates manager Clint Hurdle said Sunday that Chris Stewart is currently dealing with a tweaked hamstring.
Pirates and C Chris Stewart avoided arbitration by agreeing to a one-year, $1.225 million contract.
Chris Stewart is listed as day-to-day after X-rays on his hand came back negative on Sunday.
Chris Stewart left Sunday's game against the Reds with a left hand/wrist injury.
Pirates activated C Chris Stewart from the 15-day disabled list.
Chris Stewart (knee) could be activated from the disabled list by this weekend.
Pirates placed C Chris Stewart on the 15-day disabled list with a right knee injury.
Chris Stewart is expected to need 4-6 weeks of recovery time from Wednesday's right knee surgery.
Chris Stewart underwent a minor surgical procedure on his right knee Wednesday.
Chris Stewart will visit Dr. James Andrews to have his right knee examined, with surgery seen as "probable."
Pirates and C Chris Stewart avoided arbitration by agreeing to a one-year contract.
Pirates acquired C Chris Stewart from the Yankees for a player to be named later or cash considerations.
According to ESPN's Buster Olney, the Pirates are close to acquiring Yankees catcher Chris Stewart.
Chad Jennings of LoHud.com believes that Chris Stewart is likely to be non-tendered by the Yankees.