CINCINNATI -- No decision has been made as to the status of Jeff Karstens, who hasn't pitched since Aug. 31 due to arm soreness. It is uncertain at this point whether the 27-year-old right-hander will pitch again this season.

"We're still trying to get him completely healthy," said Pirates manager John Russell. "We're not in any rush."

Karstens, who's been sidelined twice this season with discomfort in his arm, is 3-10 with a 4.88 ERA in 25 appearances, including 19 starts.

While Karstens is eager to return to the mound, Russell is reluctant to expedite his recovery.

"For him, I know he wants to pitch," Russell said. "He wants to go out on a solid note. But we're not going to push the issue."

Pirates beef up coaching contingent

CINCINNATI -- The visiting clubhouse at Great American Ball Park is crowded this weekend with 35 players on the Pirates' active roster along with the addition of three Minor League coaches.

From Triple-A Indianapolis, manager Frank Kremblas, pitching coach Dean Treanor and hitting coach Jeff Branson joined the ballclub on Friday.

"They can give us some insight into some players that we have not seen very much of," said Pirates manager John Russell. "They can help us with some of the knowledge they have. More than anything it's about being part of the organization and helping out."

Kremblas and Treanor will remain with the team for the rest of the season. Branson will stay on until the conclusion of the seven-game road trip.

Moss familiar with Reds' Chapman

CINCINNATI -- Pirates outfielder Brandon Moss isn't relishing the opportunity to face Reds left-hander Aroldis Chapman again in this weekend's series.

While a member of Triple-A Indianapolis, Moss faced Chapman, who was pitching for the Louisville Bats, on several occasions. Moss fondly recalls his first at-bat against the Cuban fireballer.

"First time I faced him, he threw behind me at 101 [mph]," Moss said. "He struck me out at least four times. I made contact twice against him. I grounded to second and it was like a moral victory."

The Reds signed Chapman to a 5-year, $30 million contract in January. He is 1-0 with a 0.00 ERA in five appearances. He has two walks and five strikeouts in 4 1/3 innings. His fastball regularly is clocked at 102 mph and once reached 105 in the Minor Leagues.

"At first you didn't feel comfortable facing him because he was so wild," Moss said. "Since he went to the bullpen he's been lights out. He doesn't look overwhelmed [in the Major Leagues]. He's a weapon in any bullpen."

Bucs searching for full-time right fielder

CINCINNATI -- The Pirates have used six players in right field this season. Manager John Russell doesn't expect a long-term everyday solution to be determined soon. He's hoping someone will emerge from the current crop of candidates.

"We're hoping, but September evaluations are tough," Russell said. "We've got a lot of guys. There are guys we feel good about. Obviously we'd like a guy to be in the lineup everyday and do what corner outfielders do. But we're not there yet."

Garrett Jones leads the club with 45 appearances in right field, followed by Lasting Milledge's 41. Ryan Doumit made his 12th appearance in right field on Friday night.

Russell said the Pirates could go with a platoon situation next season or pursue options in the free-agent market. But he's not willing to forgo options on the current roster just yet.

"We've got some good candidates in-house," he said. "It could be intriguing. We've got some guys who've had some success. We'll look at our options this winter and see what's available to us."

Worth noting

CINCINNATI -- Infielder Aki Iwamura and catcher Erik Katz both cleared waivers on Friday. Iwamura was released. Katz was outrighted to Triple-A Indianapolis. ... Neil Walker celebrated his 25th birthday on Friday. ... Class A Bradenton was eliminated from the postseason on Thursday, losing its series to Charlotte, 2-1 ... The Altoona Curve beat Harrisburg on Thursday to even their best-of-five Eastern League series at one game apiece.