Red Sox Have Shown Interest In Seranthony Domínguez

The Red Sox are known to be looking for bullpen upgrades. According to Sean McAdam and Chris Cotillo of MassLive, right-hander Seranthony Domínguez is one specific name they have checked in on, though the report suggests nothing is imminent.

Domínguez, 31, has been a leverage reliever in the big leagues for several years now. He has generally done a good job of missing bats and keeping the ball on the ground but has also shown some control problems.

Overall, Domínguez has 306 big league innings on his track record, having allowed 3.50 earned runs per nine. His 10.5% walk rate is a bit worse than par but his 45.1% ground ball rate is a few ticks better than average while his 27.9% strikeout rate is quite strong. He has racked up 40 saves and 78 holds along the way.

2025 was a fairly extreme season for him, a year in which he added a splitter and a curveball to his arsenal. It was split between the Orioles and Blue Jays, as he was amusingly traded in between games of a doubleheader between the two. He was on the Baltimore roster in the first game of the contest and then pitched against them as a Blue Jay in the second game. He finished the year having tossed 62 2/3 innings with a 3.16 ERA. His 13.8% walk rate was the highest of his career but his 30.3% strikeout rate was also better than normal for him.

Despite the lack of control, Domínguez held a key role in the Toronto bullpen through their playoff run, with mixed results. He did post a strong 3.18 ERA over 12 postseason appearances, but he walked 11 opponents and only struck out 10. He seemed to benefit from a .115 batting average on balls in play and 91.5% strand rate in that small sample of work under the bright lights.

For the Red Sox, their bullpen needs aren’t desperate. Their relief group had a collective 3.41 ERA in 2025, second only to the Padres. But even the best teams can find a way to make an addition and bump out their eighth-best arm.

At the beginning of the offseason, MLBTR predicted Domínguez could earn an $18MM deal over two years. The relief market has moved fast, with guys like Edwin Díaz, Devin Williams, Phil Maton, Kyle Finnegan, Emilio Pagán, Raisel Iglesias, Gregory Soto, Ryan Helsley and others off the board. That leaves Robert Suarez, Brad Keller, Pete Fairbanks, Tyler Rogers, Sean Newcomb and Domínguez as some of the better names still out there.

The Red Sox may not have huge payroll flexibility but they also have plenty of other balls in the air. They are looking for big lineup upgrades and may be able to trade controllable starting pitching. It’s also possible they could use their corner outfield surplus on the trade block. If they add a big bat at first base, then maybe Triston Casas is available as well. Amid all of that, adding to the bullpen probably isn’t the biggest priority but they also can’t wait forever with the way the market is moving.

Photo courtesy of Nick Turchiaro, Imagn Images