Red Sox manager John Farrell said Tuesday that an MRI showed further inflammation in the area, and that Pedroia has been playing through the injury for most of the season.
"I wouldn't rule out shutting him down, but it's too premature to make a final decision on that right now," Farrell said. "He's been getting treatment on it for some time now and as it's probably worsened some; felt like he needs to give this a little bit of a break.
Pedroia had surgery last offseason on his left thumb, and Farrell said his second baseman probably could've used more rehab time before returning from it.
"While he feels better today, he's not ready to resume baseball activity. We're hopeful that would be in the coming days," Farrell said. "If it's determined that anything more severe can come out of that by playing we'll certainly factor that in and not put him at further risk."
Pedroia is hitting .278 this season, the lowest he's hit in a full season in his career. He has seven home runs and 53 RBI.
- Molly Geary