The Chicago White Sox have agreed to a two-year, $20 million deal with right-hander Seranthony Domínguez, adding a high-leverage veteran to their bullpen.
The Chicago White Sox have agreed to terms with right-handed reliever Seranthony Domínguez on a two-year, $20 million contract, multiple sources reported Friday.
The deal, first reported by ESPN’s Jeff Passan and confirmed across outlets including MLB.com and The Athletic, includes $20 million guaranteed with an average annual value of $10 million.
Domínguez, 31, brings high-leverage experience to a White Sox bullpen in rebuild mode following a challenging 2025 season. The Puerto Rico native spent the bulk of his career with the Philadelphia Phillies, but had stints in both the Baltimore and Toronto bullpens in 2025. Known for his mid-to-upper-90s fastball and sharp slider, he has recorded 40 career saves and has been a reliable late-inning arm when healthy.
The signing follows the White Sox’s trade of outfielder Luis Robert Jr. to the New York Mets earlier this week, part of Chicago’s ongoing youth-focused reset under general manager Chris Getz. Domínguez provides veteran stability and swing-and-miss stuff to a relief corps that struggled with consistency last season.
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The White Sox have not yet made an official announcement, but the agreement positions Domínguez as a candidate for the closer role, the first clear-cut ninth-inning option for Chicago since Liam Hendriks’ departure after 2022. Pending a physical, the move bolsters the bullpen ahead of spring training.