BOSTON -- Dustin Pedroia has May 25 in mind as his return date to the Boston Red Sox, he told The Athletic.

The second baseman played another three innings today in an extended spring training game.

"How many days (does) May have? Thirty-one days?" Red Sox manager Alex Cora said. "Well, put May 32. We'll see. It's a work in progress. Whenever he's ready, he'll be here."

The Red Sox have yet to map out when they want Pedroia to begin a minor league rehab assignment.

He underwent a cartilage restoration procedure on his left knee Oct. 25.

"You can't prepare for standing up for three hours in spikes," Cora said. "And now that's part of his process. He's moving around, standing up the whole time, playing games. Hopefully, more innings obviously. And there's going to be some soreness. We've got to see how he reacts to it. Not only his knee but obviously his hamstrings and everything."

Pedroia also said he could report to Triple-A Pawtucket for a rehab assignment May 12.

"I didn't know he said that," Cora replied when told of Pedroia's comments. "If he said that, I'll check with (head trainer) Brad (Pearson) and go from there. But as of right now, I know he's working this week in Fort Myers."