BOSTON -- The Red Sox made their final round of September callups on Tuesday, highlighted by the return of lefty Rich Hill.
For Hill, the pride of Milton, Mass., this marks his second stint with his hometown team. The Red Sox also invited Hill to Spring Training in 2014, but he didn't make the club.
The Red Sox are expanding to a six-man rotation at the end of this week, and Hill is a candidate to get a start.
"He's certainly a candidate to be that sixth starter," said interim manager Torey Lovullo. "We haven't quite mapped it out yet. I'll have some more information for you guys tomorrow as to what we're going to do moving forward with our rotation. But excited to have Rich. Somehow all leads back to Boston for him. It's good to see him."
Hill has pitched 197 games in his career, 70 as a starter. The lefty is 24-22 with a 4.72 ERA.
The Red Sox also recalled right-handers Jonathan Aro and Matt Barnes, providing the club with a little more bullpen depth.
Barnes began the year as a reliever, but he then moved back to his natural role of starting.
But after he experienced some right elbow discomfort recently, the Red Sox will deploy him in the bullpen for the rest of the season.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, follow him on Twitter @IanMBrowne and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.