Jackson signed a minor-league contract with the Mariners on Thursday.
Jackson elected free agency after being designated for assignment by the Tigers in early August. He'll likely start his time with Seattle at Triple-A Tacoma, but he could contribute to the big-league club in the final weeks of the regular season.
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Luke Jackson: Becomes free agent
Rotowire
Jackson elected free agency Monday, Evan Woodbery of MLive.com reports.
The veteran reliever cleared waivers after being removed from the Tigers' 40-man roster and will seek a job elsewhere rather than accepting an outright assignment to the minors. Jackson has posted a 4.54 ERA and 28:24 K:BB over 39.2 innings this season between the Rangers and Tigers.
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Tigers' Luke Jackson: Dropped from 40-man roster
Rotowire
The Tigers designated Jackson for assignment Friday, Chris McCosky of The Detroit News reports.
Jackson inked a contract with Detroit on July 26 and surrendered four runs in 4.2 innings before Friday's DFA. The 33-year-old previously pitched for Texas this season and briefly served as the Rangers' closer, posting a 4.11 ERA over 35 total innings. Assuming he clears waivers, Jackson will likely stay within the Tigers organization.
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Tigers' Luke Jackson: Better in second game with Detroit
Rotowire
Jackson tossed two scoreless innings of relief with two strikeouts in Tuesday's 12-2 win over the Diamondbacks.
Jackson made his Detroit debut Sunday and promptly allowed four runs while walking three batters and only retiring two. His second appearance with his new team was much more promising, however, and the righty lowered his season ERA to 4.78. Jackson still projects as a low-leverage arm with the Tigers, and he's unlikely to make a significant fantasy impact.
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Tigers' Luke Jackson: Lands in Detroit
Rotowire
Jackson signed a one-year, major-league contract with the Tigers on Saturday, Evan Petzold of the Detroit Free Press reports.
Jackson was cut loose by the Rangers on Friday after posting a 4.11 ERA and 1.46 WHIP through 35 innings with the club. It didn't take very long for the 33-year-old righty to find his next gig, however, and he'll likely begin his tenure with Detroit as a middle reliever for the major-league team.
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Luke Jackson: Becomes free agent
Rotowire
The Rangers released Jackson on Friday.
Jackson was DFA'd by Texas on Wednesday and wasn't claimed off waivers. He's now free to seek an opportunity elsewhere. Jackson was an impactful fantasy asset early this season when he saved eight games over the first month of the campaign, but he eventually lost the closer role in Texas and struggled in his final seven outings with the club, allowing seven runs (six earned) over 7.2 innings.
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Rangers' Luke Jackson: DFA'd by Texas
Rotowire
The Rangers designated Jackson for assignment Wednesday.
Jackson still leads the Rangers with nine saves this season, but he has posted an uninspiring 4.11 ERA, 1.46 WHIP and 24:19 K:BB over 35 innings. The right-hander is under contract at a manageable $1.5 million salary, so he could attract some interest via trade or waivers. Even if he quickly finds a home in a new organization, Jackson is unlikely to earn usage in high-leverage spots out of the bullpen, at least not right away.
Jackson picked up the save Sunday against the White Sox, allowing no hits or walks with one strikeout over a scoreless ninth inning.
Jackson received his first save chance since May 21 as closer Robert Garcia got the day off after throwing in back-to-back games. Jackson cashed in for his ninth save of the campaign, marking his first perfect appearance in five outings. The 33-year-old owns a 3.91 ERA and an 18:11 K:BB over 23 innings in 2025.
Rangers' Luke Jackson: Yields walk-off homer in blown save
Rotowire
Jackson (0-4) blew the save in Wednesday's 4-3 defeat to the Yankees, allowing one run on two hits in the ninth inning.
Jackson gave up a walk-off home run to Jasson Dominguez, taking his second blown save of the season. The veteran right-hander has worked as Texas' primary closer to open the campaign, but his 5.52 ERA, 1.57 WHIP and 13:8 K:BB over 14.2 innings likely loosens his grip on the gig and leaves the door open the door for the likes of Shawn Armstrong, Robert Garcia and Jacob Webb to see additional save chances in the future. Jackson missed some time with a swollen hand recently, and he's yielded six runs across his last 5.2 innings.
Jackson (hand) issued a walk and struck out a batter in a scoreless inning during Sunday's 4-3 loss to the Astros.
Jackson battled a swollen hand throughout the week after being hit by a comebacker May 12 against the Rockies, but he returned to the mound Sunday in a non-save situation. The right-hander didn't appear to have any lingering issues as he threw 10 of 15 pitches for strikes, and his average fastball velocity of 93.6 mph was only marginally lower than his season average. Shawn Armstrong picked up a pair of saves in his absence, but Jackson should reclaim primary closing duties now that he's healthy.
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