Skip to content

Red Sox agree to terms with Justin Masterson on 1-year, $9.5M deal

Jeff Curry / USA TODAY Sports

Click here to access our MLB Tracker, which includes every offseason rumor, trade and signing.

The Boston Red Sox continue to corner the market on mid-rotation arms.

ESPN's Buster Olney reports the club has agreed to terms with free-agent right-hander Justin Masterson. The contract is for one year and $9.5 million, according to Jon Morosi of FOX Sports. The Red Sox made the signing official Thursday night.

Masterson, 29, spent parts of his first two seasons in Boston before getting dealt to the Cleveland Indians in the Victor Martinez trade at the 2009 deadline.

Related: ​Red Sox trade Cespedes to Tigers for Porcello

The right-hander was an All-Star in 2013 after throwing a league-leading three shutouts and recording his second of back-to-back 200-inning seasons. He regressed significantly last year, however, pitching to a 5.88 ERA and 1.63 WHIP over 128 2/3 innings with the Indians and St. Louis Cardinals.

Masterson's struggles were tied to a sharp loss in velocity last year, perhaps a result of knee problems that sidelined the seven-year veteran for more than a month.

Related: Report: Diamondbacks agree to trade Wade Miley to Red Sox

MLB Network analyst Peter Gammons tweets that Masterson's health isn't a concern.

"His knee is OK," an Indians executive told Gammons. "His mechanics got out of whack and could never recover his velocity."

Masterson is expected to compete for a rotation spot in a revamped staff that includes Clay Buchholz, Joe Kelly, Rick Porcello, and Wade Miley.

Daily Newsletter

Get the latest trending sports news daily in your inbox