Danny Duffy allowed four runs on six hits over 5 1/3 innings in his start Friday with Triple-A Omaha. It was Duffy's second Triple-A start since being activated from the the 60-day DL. He threw 83 pitches, didn't give up any walks and finished with four strikeouts. Duffy will continue his recovery from Tommy John surgery in the minors but should be an option for the Royals' rotation at some point this season.