The 26-year-old Knudson allowed 10 runs in five innings across four appearances for Detroit in 2015. The right-hander went a combined 1-2 with 11 saves, a 2.56 ERA and 60 strikeouts in 40 appearances between Double-A Erie and Triple-A Toledo this year.
Knudson was originally taken in the 28th round of the 2011 first-year player draft.
(USA Today Photo)
RHP Guido Knudson has been claimed off waivers by the Pittsburgh Pirates.
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