The Mariners are trading for right-handed reliever Gregory Santos from the White Sox, with Seattle sending right-hander Prelander Berroa, outfielder Zach DeLoach and the 69th pick in the 2024 Draft to Chicago, a source told MLB.com’s Daniel Kramer on Saturday.
Neither club has confirmed the deal.
Santos, 25, made 60 appearances for the White Sox last season, going 2-2 with a 3.39 ERA over 66 1/3 innings while posting a 1.296 WHIP. Acquired by Chicago in a 2022 trade with the Giants, Santos has struck out 71 in 72 innings across parts of three big league seasons.
Ranked the Mariners’ No. 15 prospect at the end of 2023, Berrora is a 23-year-old out of the Dominican Republic who appeared in two games with Seattle last year, striking out and walking three over 1 2/3 innings. He’s gone 21-12 with a 3.58 ERA across six Minor League seasons, making 124 appearances, 77 of them starts.
DeLoach, 25, is a left-handed-hitting outfielder who was ranked the 25th-best Seattle prospect as the calendar flipped to 2024. He made it to Triple-A in 2023, hitting .286 with 23 homers and 88 RBIs while sporting an .868 OPS.
