Middleborough native Sean Newcomb joins White Sox on one-year contract

CHICAGO — Lefthander Sean Newcomb and the White Sox agreed Tuesday to a $4.5 million, one-year contract.

The 32-year-old was 2-5 with a 2.73 ERA and two saves in five starts and 43 relief appearances last season for the Red Sox and the Athletics, who acquired him on May 27 for $100,000. He was 2-1 with a 1.75 ERA and a .214 opponents’ batting average after the trade.

Newcomb made the Red Sox last season out of spring training and went 0-4 with a 3.95 ERA in 12 appearances, including five starts, before being designated for assignment between games of a May 24 doubleheader.

Newcomb is 30-30 with a 4.20 ERA and four saves in 65 starts and 158 relief outings for the Braves (2017-22), the Cubs (2022), the A’s (2023-25), and Red Sox (2025).

Lefthander Ryan Rolison was designated for assignment to open a roster spot.