KANSAS CITY -- Royals left-hander Danny Duffy made it through his first Minor League rehabilitation start successfully.
Duffy, coming back from Tommy John surgery, pitched three scoreless innings on Sunday for Double-A Northwest Arkansas at San Antonio. He gave up two hits and two walks along with four strikeouts, a hit batter, a wild pitch and a balk while throwing 63 pitches (37 strikes).
It's expected he could be ready for Major League competition by midseason.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.