Michael Fulmer didn't give up a run in his first 10 outings this season.
The Detroit Tigers setup man logged 10u2153 innings, striking out eight batters and walking two.
But still, something didn't feel right — his slider didn't have the depth or the bite it was supposed to have. His velocity was down. So he and pitching coach Chris Fetter started to search for answers.
The immediate results weren't ideal in his next four outings. The 29-year-old right-hander picked up two losses, giving up six earned runs in four innings, allowing five hits, six walks (including one in each game) with three strikeouts.