The Red Sox acquired Carpenter from the Chicago Cubs as compensation for Theo Epstein, who resigned from his post as Red Sox general manager to accept the job as president of baseball operations for the Cubs last offseason.
Carpenter, 26, posted a 1-0 record with a 1.15 ERA, along with four saves for the PawSox. He began the season on the disabled list after having surgery to remove bone spurs in his throwing elbow during spring training.
He made five rehab appearances before joining the PawSox on July 16. Carpenter was then activated from his major league rehab assignment and officially optioned to Pawtucket on July 31.
“He’s been real consistent,” Pawtucket pitching coach Rich Sauveur told ESPNBoston.com on Friday. “He’s been very, very, very consistent. He’s got good stuff.”
“As a reliever, that’s what they’re looking for and that’s consistency,” Carpenter said. “I feel like I have been pretty consistent so far. I’m not satisfied with where I’m at and I want to try to keep going out there and getting better every time. I feel pretty good with where I’m at right now.”