Pedroia is dealing with soreness in his left knee and has missed two of his team's last three games with the injury.
“My knee is pretty swollen,” Pedroia said, according to the Boston Herald. “But it’s one of those things where I went out, took BP (batting practice), ran around and (it) feels good, but then game time is a little different.”
"We're not at a DL point with this," Farrell said, according to MLB.com. "All the information that we've had after the exams taken is that it's not structural. There's some inflammation in there, so we're trying to get that out as soon as possible."
Farrell did not say when Pedroia, a four-time All-Star, would be back in the lineup.
Boston starts a three-game series in Kansas City against the Royals on Friday.
"We're dealing with a day-to-day situation," Farrell said. "He felt good yesterday coming in, but it feels like it's to the point where it affects his ability to hit against a firm front side. As a result, we need to give him a little time."
Pedroia, 31, is hitting .307 with nine home runs and 27 RBIs this season for the Red Sox (29-39), who have lost eight of their last 10 games and sit in last in last place in the American League East.
- Scooby Axson