Stumpf (elbow) was designated for assignment by the Tigers on Thursday, Emily Waldon of The Athletic reports.
Stumpf was already a non-tender candidate due to his role as a lefty specialist, as the league will implement a three-batter minimum for pitchers in 2020, and he now finds himself off the team's 40-man roster. The 28-year-old cleared waivers and opted to become a free agent, Jason Beck of MLB.com reports. In 48 appearances this season, the southpaw recorded a 4.34 ERA with 28 strikeouts over 29 innings pitched.
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Tigers' Daniel Stumpf: Done for season with elbow injury
Rotowire
The Tigers placed Stumpf on the 60-day injured list Monday with a left elbow strain.
Stumpf's injury won't necessarily keep him out of commission for two months, but the move to the 60-day IL officially ends his season and opens up a 40-man roster spot for reliever Marcos Diplan, whom the Tigers claimed off waivers from Minnesota. A lefty specialist who likely won't bring much utility with the MLB implementing a three-batter minimum for pitchers in 2020, Stumpf looks like a potential non-tender candidate for the Tigers this winter.
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Tigers' Daniel Stumpf: Returns to majors
Rotowire
Stumpf was recalled from Triple-A Toledo on Monday, Chris McCosky of The Detroit News reports.
Stumpf compiled a 4.44 ERA and 1.75 WHIP across 26.1 innings with the Tigers earlier in the season but dominated after being sent to Toledo in July, posting a 0.59 ERA, 0.79 WHIP and 24:4 K:BB across 15.1 innings while notching two wins and four saves. The southpaw will provide the big club with bullpen reinforcements for the stretch run.
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Tigers' Daniel Stumpf: Optioned to Triple-A
Rotowire
Stumpf was optioned to Triple-A Toledo on Wednesday.
Stumpf has been on the big-league roster all season and has pitched capably enough, recording a 4.44 ERA in 26.1 innings. Both his 20.2 percent strikeout rate and 10.5 percent walk rate are worse than average, though not by a large amount. He'll make way for Drew VerHagen, whose contract will be selected in a corresponding move.
The Tigers recalled Stumpf from Triple-A Toledo on Sunday.
With righty reliever Buck Farmer moving into the rotation to make a spot start Sunday against the Twins, Stumpf will move up to the big club to give the Tigers another southpaw out of the bullpen. Over 41 appearances with Detroit this season, Stumpf has submitted a 7.11 ERA and 2.01 WHIP across 25.1 innings and will likely see his usage limited mainly to lefty-on-lefty matchups.
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Tigers' Daniel Stumpf: Sent down to Toledo
Rotowire
Stumpf was optioned to Triple-A Toledo on Wednesday, Jason Beck of MLB.com reports.
Artie Lewicki will take Stumpf's place on the active roster after the latter was cast off the 25-man prior to Wednesday's game. Across 41 relief appearances with the Tigers this year, Stumpf has logged an abysmal 7.11 ERA and 2.01 WHIP with a 5.3 BB/9.
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Tigers' Daniel Stumpf: Headed to majors
Rotowire
Stumpf (elbow) has returned to health and will be recalled from Triple-A Toledo, John Wagner of The Toledo Blade reports.
Stumpf has appeared in 28 games for Detroit this season, accruing a 5.71 ERA and 1.90 WHIP with 14 strikeouts over 17.1 innings. He'll likely be used in low-leverage situations out of the bullpen, given his alarming ERA.
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Tigers' Daniel Stumpf: Cleared for rehab stint
Rotowire
Stumpf (elbow) will begin a minor-league rehab assignment with Triple-A Toledo on Tuesday.
Stumpf has been on the disabled list since May 30 with ulnar nerve irritation, but he's been cleared to return to game action after getting through a bullpen session with no issues over the weekend. He's expected to need at least two rehab appearances before rejoining the Tigers.
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Tigers' Daniel Stumpf: Rehab assignment looming
Rotowire
Stumpf (elbow) is set to embark on a rehab assignment with Triple-A Toledo in the next couple days, Jason Beck of MLB.com reports.
Stumpf recently threw his first bullpen session since landing on the DL with left ulnar irritation in late May and could see time in the minors as soon as this weekend if everything goes according to plan. It's expected that he will require multiple outings with the Mud Hens before returning to Detroit.
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Tigers' Daniel Stumpf: Cleared for bullpen session
Rotowire
Stumpf (elbow) will throw a bullpen session this week, Chris McCosky of The Detroit News reports.
Stumpf is having no issues throwing all of his pitches from flat ground, so he'll progress to mound work for the first time since landing on the disabled list near the end of May. The lefty will eventually need to face live hitters before returning, leaving his possible return date up in the air.
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Tigers' Daniel Stumpf: Throwing from flat ground
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Stumpf (elbow) threw from flat ground Thursday, Chris McCosky of The Detroit News reports.
Stumpf landed on the disabled list at the end of May with an elbow injury, but he's already resumed throwing a program after an MRI cleared him of any structural damage. He'll continue to ramp up his throwing intensity before eventually being cleared to head out on a minor-league rehab stint.
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Tigers' Daniel Stumpf: Avoids structural damage to elbow
Rotowire
Stumpf was cleared of any structural damage to his left elbow after undergoing an MRI on Wednesday, Chris McCosky of The Detroit News reports.
Stumpf was placed on the 10-day disabled list Tuesday after experiencing irritation in the ulnar nerve of his elbow, but follow-up examinations revealed that the ligament is still intact. The 27-year-old is expected to rest up for a few days to allow the inflammation in the elbow to subside before resuming a throwing program.
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Tigers' Daniel Stumpf: Placed on DL
Rotowire
Stumpf was placed on the 10-day disabled list Tuesday with left ulnar irritation, Chris McCosky of The Detroit News reports.
Stumpf last pitched on Monday, walking the only batter he faced. He is apparently dealing with some swelling in his elbow which has caused tingling in his fingers. He was seen by a specialist who suggested that he take some time off. Johnny Barbato was recalled from Triple-A Toledo to fill Stumpf's spot in the bullpen.
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Tigers' Daniel Stumpf: Charged with another loss
Rotowire
Stumpf (1-2) was tagged with the loss and a blown save Monday against the Rangers. He retired just one of the three hitters he faced, allowing an earned run on two hits.
Stumpf came on in the seventh inning with a runner on base and two outs, and he promptly allowed a single to Shin-Soo Choo to bring home the inherited runner to tie the game. He then gave up a triple to Jurickson Profar that plated the go-ahead run. Stumpf has taken the loss in two of his last three appearances, and he's allowed three earned runs over an inning of work in that time to bump his season ERA up to 3.55.
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Tigers' Daniel Stumpf: Takes loss Friday
Rotowire
Stumpf (1-1) was charged with the loss Friday against the Royals, allowing two earned runs on two hits while retiring just a single batter.
Stumpf relieved starter Francisco Liriano with no outs and one on in the eighth, and he gave up singles to Jon Jay and Alex Gordon before getting the hook. Both runners would come around to score against Joe Jimenez. The subpar performance bumped Stumpf's season ERA from 1.54 up to 3.00.
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Tigers' Daniel Stumpf: Records first win Wednesday
Rotowire
Stumpf (1-0) recorded his first win of the season in Game 1 of Wednesday's doubleheader with the Pirates by tossing 1.1 scoreless innings of relief while striking out one.
In a game that featured 23 total runs and 34 hits, Stumpf was one of the few pitchers who performed effectively. The lefty now has a solid 2.16 ERA for the season. His fantasy value is limited due to his middle-relief role, but he should continue to be one of Detroit's most reliable bullpen options.
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Tigers' Daniel Stumpf: Pitching well this spring
Rotowire
After a scoreless outing in Thursday's Grapefruit League loss to the Braves, Stumpf has his spring training ERA down to 2.57 across seven innings.
Stumpf is likely going to be the team's top left-handed option this season, and he's looking the part in spring training. Stumpf profiles as a true LOOGY for the Tigers, as righties posted an .873 OPS against him last season. That makes him valuable in Detroit, but limits his fantasy appeal outside of leagues that count holds.
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Tigers' Daniel Stumpf: Considered top lefty in bullpen
Rotowire
Tigers pitching coach Chris Bosio suggested Wednesday that Stumpf will enter the season as the team's top left-hander out of the bullpen, Chris McCosky of MLive.com reports. "Big stuff, great stuff," Bosio said of Stumpf. "This guy knows what he's doing. We are trying some things with him and he's got the aptitude to do it, as well. We've got a special left-handed reliever right there in Daniel."
So far in spring training, Stumpf has picked up where he left off in 2017, when he finished the season as the Tigers' undisputed top southpaw reliever. Considering the lack of impact arms in the Detroit bullpen, however, that distinction doesn't mean a whole lot for Stumpf, who remains best suited for a true LOOGY role rather than one that requires him to record three-plus outs against hitters from either side of the dish. Opposing righties torched Stumpf last season to the tune of an .873 OPS, a 261-point difference from his mark against lefties.
