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9/2/2014 7:40 P.M. ET

Reports on Bradley 'mixed' at Pawtucket

NEW YORK -- While Jackie Bradley Jr. is still expected to rejoin the Red Sox at some point this month, he is still working on the offensive inconsistencies that led to his demotion to Triple-A on Aug. 18.

"Jackie was well aware when we sat down and described what needs to be the focal point," said manager John Farrell. "I don't know that necessarily needs to be repeated right now. The reports have been mixed. There have been days as he's executed between the lines as he's been working on, but it's still a work in progress."

In 14 games for the PawSox, Bradley is hitting .212 with one homer, five RBIs and a .519 OPS.

Bradley will be with Pawtucket for a playoff run that starts on Wednesday.

Top prospect Mookie Betts has been playing center since Bradley got sent down. Rusney Castillo is expected to take over that spot when he's gotten enough at-bats in the Minors. Castillo will be with Double-A Portland for the playoffs.

Ranaudo likely to stay in rotation rest of season

NEW YORK -- Anthony Ranaudo already experienced the thrill of beating the Yankees, the team he rooted for as a kid, in his Major League debut on Aug. 1.

On Wednesday, the New Jersey native will get another night to savor, as he pitches for the first time in Yankee Stadium.

Ranaudo was recalled from Triple-A Pawtucket for the fourth time on Tuesday in advance of the start. This time, he is expected to remain in Boston's rotation for the remainder of the season.

"I'm trying not to think about that," said Ranaudo, who is ranked the club's No. 5 prospect. "Whenever they ask me to take the mound, I'm just going to go out there and focus on that start. I've done a pretty good job mentally this year of focusing on the things I can control. Wherever my start is, or whenever it is, I'll take the ball and just be aggressive and stick to my strengths."

The righty won his first three starts in the Majors, and the Red Sox look forward to watching him try to build off this momentum.

"The one thing that has been consistent in the three outings he's made for us is maybe the handling the environment, the handling of the situation in the Major League setting," said manager John Farrell. "He's not deviated away from what has made him successful prior to getting here and it's been encouraging to see the use of his fastball, which his secondary pitches clearly play off of that."

The Red Sox will bring another pitcher up from the Minors to start Thursday's game in Brandon Workman.

Farrell will deploy a six-man rotation for the foreseeable future, perhaps for the rest of the season.

Dan Butler was also added to the roster on Tuesday to be a third catcher.

Worth noting

• Dustin Pedroia is still dealing with symptoms related to the concussion he suffered on Saturday night at Tropicana Field.

"Yesterday when he tried some activity, he didn't feel quite right, and I say that only because it's hard for me to categorize or specifically define what he's feeling," said Farrell. "There's some inconsistencies with his sleep. These are symptoms consistent with a concussion and we've got to be cautious with this and go day to day."

• Even though the arrival of Castillo figures to create a log-jam in Boston's outfield, Farrell won't move Betts back to the infield this season.

"In fairness to Mookie, we've put a lot on his plate," Farrell said. "He's handled everything we've asked of him very well, including steady development in the outfield. His reads and routes have become more consistent, and for us to make another shift I think is not fair to him. He's settling in at the big league level and doing a very good job on both sides of the ball and we don't want to do anything to potentially disrupt that."

Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.