The 29-year-old southpaw has made just one appearance over the past two seasons with shoulder and elbow problems. His 2015 season was wiped out by surgery to repair a torn labrum in his pitching shoulder in May. He returned to the mound on July 7 this year against the San Diego Padres, but after giving up six runs on eight hits in 4 2/3 innings, Ryu returned to the disabled list with left elbow tendinitis.