Jeremy Bonderman is likely unavailable in the Tigers bullpen for Saturday's game against the Royals due to discomfort in his thumb. Bonderman's transition to the bullpen with the Tigers hasn't gone as well as they would've liked, as he's posted a 5.28 ERA, 1.57 WHIP and 14/10 K/BB ratio over 15 1/3 innings. If he can't prove his health and improve the results in the final two weeks of the season, he's unlikely to be included on the postseason roster.