The 6-foot-1, 200-pound lefty for Kentucky made 14 starts in 2013, owning a 6-6 record and a 4.86 ERA. Grundy worked 83 1/3 innings along the way, allowing just 20 walks and striking out 61.
"He's a polished college lefty who had a very good college career," Kubota said. "We hope he can have the same success as he did in college."
Jeff Kirshman is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.