San Diego, CA (SportsNetwork.com) - The Boston Red Sox continued to be active on Thursday, as they have reportedly signed right-hander Justin Masterson to a one-year deal.

Boston also acquired righty Rick Porcello from the Detroit Tigers on Thursday and are apparently working toward a deal that would also land them lefty Wade Miley.

As per Fox Sports' Ken Rosenthal, Masterson will earn $9.5 million this season, with another $2.5 million in possible incentives.

Masterson started his career with the Red Sox and pitched parts of two seasons there before being sent to Cleveland for Victor Martinez in 2009.

The 29-year-old sinkerballer was an All-Star for the Tribe in 2013, but struggled last season and was eventually dealt to St. Louis at the non-waiver trade deadline. He was 7-9 combined last season with a 5.88 ERA in 28 games (25 starts).

Masterson is 60-72 lifetime with a 4.24 ERA in 240 games (175 starts) for the Red Sox, Indians and Cardinals.