12:10pm: Ari Alexander of KPRC 2 reports that the Mariners are sending right-hander Will Klein to the Mariners for Jacques. Klein was just designated for assignment by the Mariners a few days ago. The Dodgers will need to open a 40-man roster spot for him.
Klein has just 7 1/3 innings of major league experience, which all came last year. He allowed nine earned runs in that time. This year, he’s been in Triple-A and has posted a 7.17 ERA at that level with a strong 30.5% strikeout rate but also a massive 18.1% walk rate. That’s generally been his recipe throughout his minor league career.
7:11am: In an early morning deal, Joel Sherman of the New York Post reports that the Mariners are acquiring southpaw Joe Jacques from the Dodgers. The return headed to Los Angeles is not yet known, though unlikely to be significant given Jacques’s status as a player on a minor league deal.
Jacques, 30, was a 33rd-round pick by the Pirates all the way back in 2018. He climbed the minor league ladder with Pittsburgh and ultimately reached Triple-A with them before posting a 3.12 ERA across three levels of the minors in his final season with the organization. It wouldn’t be until 2023 when he made his big league debut as a member of the Red Sox, for whom he pitched to a pedestrian 5.06 ERA in 26 2/3 innings of work. He generated an excellent 64.7% ground ball rate, but struck out only 16.4% of his opponents while walking 8.2%. Overall, Jacques profiled as a roughly average to slightly below average reliever based on his peripheral numbers, including a 4.53 FIP and a 4.12 SIERA.
Jacques remained on Boston’s 40-man roster throughout the 2023-24 offseason, but ultimately made just one appearance at the big league level in 2024 before he was designated for assignment and plucked off waivers by the Diamondbacks. He had a similar experience with Arizona, appearing in one game before he was eventually designated for assignment to make room on the roster for newly-acquired reliever A.J. Puk. Those two outings in the majors last year saw him surrender three runs on six hits and a walk across three innings of work while striking out two. Meanwhile, the lefty pitched to a 5.48 ERA in 42 2/3 innings of work at the Triple-A level.
It was a lackluster performance overall, but when Jacques reached minor league free agency he was quickly snapped up by the Dodgers on a minor league deal back in November. Jacques has struggled to a 6.04 ERA in 22 1/3 innings at Triple-A so far this year, although a 3.82 FIP and a .391 BABIP suggest there could be some bad luck baked into those numbers. Clearly, the Mariners saw enough in the underlying metrics to have interest in acquiring him. Yesterday was a day many players on minor league deals around the league had the opportunity to trigger opt outs and upward mobility clauses; if that came to play in this deal, it wouldn’t be a surprise to see Seattle add Jacques to the 40-man roster once the deal becomes official.
One possible reason for Seattle to have interest in Jacques is their dearth of left-handed pitching options. Gabe Speier is the only lefty on the Mariners’ pitching staff at the moment, and while he’s currently in the midst of a resurgent season that’s made him a legitimate high-leverage option he’s just one season removed from a 5.70 ERA in 29 appearances. Jhonathan Diaz and Tayler Saucedo are both in the minors on the 40-man roster, but Diaz has been used primarily as a starter this season while Saucedo has surrendered four runs in 3 2/3 big league innings this year. It’s a thin enough group to justify the addition of another arm to the mix, especially one like Jacques that has a minor league option remaining.