Luke Jackson: Everything you need to know

Jackson signed a minor-league contract with the Mets on Saturday, Jon Heyman of the New York Post reports. Jackson finished the 2025 season with a 4.06 ERA and 1.35 WHIP across 51 total innings, but he began to find consistent success near toward the end of the year, posting a 2.38 ERA and 0.88 WHIP over 11.1 frames with the Mariners. Although he won't be granted a spot on the big-league roster immediately upon signing with the Mets, he could potentially earn a spot in Queens if he continues to find success at Triple-A Syracuse.

Jackson threw 1.1 clean innings of relief Sunday against the Dodgers, striking out two. After fizzling out as the Rangers' closer to open the season and then failing to keep his roster spot with Detroit, Jackson has found his footing with the Mariners since joining the club in September. The veteran right-hander has given up no earned runs in eight of his 10 outings for Seattle, producing a 2.38 ERA, 0.88 WHIP and 10:4 K:BB over 11.1 innings. With prior late-inning experience to boot, Jackson should be an option for high-leverage work during the playoffs.

Seattle selected Jackson's contract from Triple-A Tacoma on Monday. Jackson will be back in the big leagues with his third different team of the season, following stints with the Rangers and Tigers. Between his two previous stops, the veteran reliever submitted a 4.54 ERA, 1.49 WHIP and 28:24 K:BB across 39.2 innings. He'll likely assume a low-leverage role out of the Seattle bullpen.