Stumpf threw a new, slower changeup in his spring outing against the Blue Jays on Saturday, The Detroit News reports.

EDGE Analysis

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 off of 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 out of seemingly nowhere, though, so if Stumpf shows positive results early in the season, it may be a new pitch and not a total fluke, making him a potential deep-league option.