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.
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 a .873 OPS, a 261-point difference from his mark against lefties.
Stumpf threw a new, slower changeup in his spring outing against the Blue Jays on Saturday, The Detroit News reports.
Stumpf had an upper-80s changeup last year, though he only threw it 6.7 percent of the time. Saturday's changeups were clocked in the lower 80s. A more effective changeup would give Stumpf a potential weapon against right-handed hitters, who hit .293 against him last season. The 27-year-old hasn't been a particularly fantasy-relevant pitcher thus far in his career, putting up a 4.34 ERA in 42.2 innings. Relievers can develop seemingly out of nowhere though, so if Stumpf shows positive results early in the season, it may be due to a new pitch and not a total fluke, making him a potential deep-league option.
Stumpf recorded his eighth hold of the season in Thursday's win over the Royals. He pitched a scoreless inning with no hits or walks allowed.
Stumpf has been one of the few Detroit relievers to post decent numbers this season, as he now has a 3.89 ERA for the year. However, he'll have to get that 1.41 WHIP down in 2018 if he wants to sustain success out of the bullpen.
Stumpf (0-1) was tagged with the loss and his second blown save of the season in Saturday's game against the Twins. He allowed three runs on three hits without retiring a batter.
Stumpf has been pitching reasonably well for the Tigers, but he struggled in this one. Stumpf came on after Alex Wilson took a comebacker off the leg and left with a fractured leg in the eighth inning, and Stumpf proceeded to allow three straight singles before getting the hook. All three runners came around to score as the Twins plated eight runs in the inning.
|10/1/2017 vs Minnesota|
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|More Pitching Stats|
|Minor League Pitching Stats|
|2014||AFA-Wilmington Blue Rock||3||8||3.77||32||8||0||0||2||74.0||82||34||31||1||1||19||79|
|2015||AA-Northwest Arkansas N||5||4||3.57||42||1||0||0||3||70.2||55||31||28||6||2||31||76|
|2016||AAA-Lehigh Valley IronPi||0||0||20.25||2||0||0||0||0||1.1||4||3||3||0||0||0||1|
|2016||AA-Reading Fightin Phil||1||0||4.50||3||0||0||0||0||4.0||3||3||2||0||0||1||3|
|2016||AA-Northwest Arkansas N||2||0||2.11||14||0||0||0||1||21.1||14||5||5||0||2||4||26|