Volstad, a former first-round pick, had the worst season of his career in 2012, going 3-12 with a 6.31 ERA in 21 starts for the Cubs. The 26-year-old is 35-51 with a 4.87 ERA in 124 career appearances since making his debut with the Florida Marlins in 2008. Volstad's rookie year was his best, as he went 6-4 with a 2.88 ERA in 15 appearances (14 starts) for the Marlins.
The move is a low-risk pickup for a Royals team that had the second-worst quality start rate -- 43 percent -- in the majors last season. Only the lowly Minnesota Twins were worse. Kansas City is hoping the right-hander can unlock the potential that made him worthy of a first-round pick in 2005.
Volstad's acquisition fills out the Kansas City's 40-man roster.