The Boston Red Sox are making a notable addition on Thursday night by adding southpaw reliever Danny Coulombe to a one-year MLB contract, according to Ken Rosenthal. Coulombe, an 11-year MLB veteran, posted a 2.30 ERA last season with the Minnesota Twins and Texas Rangers.
A potentially underrated signing here for the Red Sox, who are quietly having one of the more active offseasons in the league. With just two weeks left until Opening Day, Boston adds another leverage southpaw, which had been an item of need, to their roster.
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Boston to Sign Danny Coulombe $1 Million Deal
GettyThe Boston Red Sox sign Danny Coulombe
Chris Cotillo of MassLive.com reports that the deal is a flat one-year, $1 million pact.
Danny Coulombe is a 36-year-old lefty reliever with 11 years of MLB experience. He had an exceptionally strong first half of the season in 2025, which led to the Twins dealing him in their firesale effort. However, Coulombe was much less effective down the stretch of the season in 12 innings with the Rangers.
He pitched to a 2.30 ERA over 43 innings last season. Over the last three seasons, although some not a complete body of work, Danny Coulombe has posted an ERA of sub 3.00.
His career earned run average mark is 3.35 over 316.2 total innings in 11 seasons. The Red Sox will be Coulombe’s sixth MLB organization. He came up with the Dodgers in 2014, and has also played for the Orioles and Athletics. He is reportedly already at Red Sox spring camp.
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Danny Coulombe’s Fit with Red Sox
The hope for the Red Sox is that Danny Coulombe can produce around 40-50 innings out of the bullpen.
According to BaseballReference.com, Coulombe is projected to post a 3.42 ERA over 50 innings and strike out 48 batters.
Boston would take that level of production any day of the week. He will join Aroldis Chapman and Jovani Moran as left-handed bullpen options.
Coulombe isn’t going to be a huge overpowering arm. He makes his living as a soft left who keeps the ball in the ballpark and induces a lot of ground balls. That seems to be what Boston has targeted this offseason with several pitching additions. If Chapman is healthy and in the zone, the change of pace that opposing Red Sox hitters see in the ninth inning will be a big change of pace.
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