Keller (1-5) allowed two runs on six hits with two walks and seven strikeouts across five innings while taking a loss against the Mariners on Tuesday.
The 23-year-old has been very inconsistent this season, but obviously, this was one of his better starts. Unfortunately, the Pirates didn't support him with any runs, so it still led to a loss. Keller improved his numbers, but they still look bad -- 7.74 ERA, 1.84 WHIP, .351 batting average against. The one thing he has been able to supply is strikeouts, with 58 in 43 frames. Keller will make his next start at the Brewers on Sunday.