It was a short-lived return to the majors for Ross Detwiler, who was designated for assignment today by the Mariners, per a club announcement. He’ll be replaced on the active roster by righty Nick Rumbelow.
Seattle had called up the 32-year-old Detwiler only recently and ended up asking him to provide six innings of relief last night. While he only allowed three earned runs and helped preserve some other pen arms, the extended appearance also ensured he’d be removed from the roster since it rendered him unavailable for several days to come.
Detwiler opened the year in the indy ball ranks before landing with the Seattle organization. The southpaw worked to a 5.15 ERA with 5.8 K/9 and 3.0 BB/9 in his 71 2/3 innings at Triple-A before seeing action in the majors for his tenth season.