Updated

San Diego, CA (SportsNetwork.com) - The Boston Red Sox continued to be active on Thursday, as they 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.

USA Today reported that Masterson will earn $9 million this season.

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.