The Cubs announced that right-hander Robert Stock has been claimed off waivers from the Red Sox. Stock was designated for assignment by Boston last week.
Stock posted a 4.73 ERA over 13 1/3 innings for the Red Sox last season. The 31-year-old has a 4.24 ERA, 2.16 K/BB rate, and 9.5 K/9 over 63 2/3 career innings with Boston and San Diego from 2018-20, though Stock also pitched for a number of different organizations (both MLB-affiliated and in independent ball and Mexico) since the Cardinals made him a second-round pick in the 2009 draft.
Control has been something of an issue for Stock both in the minors and particularly in the majors over the course of his career, though he does have a live fastball that regularly sits in the mid-90s. There’s little risk for the Cubs in seeing if they can turn that live arm into a more reliable bullpen weapon as Chicago looks to add relief help this offseason.