Danny Duffy will start a minor-league rehabilitation assignment on Tuesday night for Class AAA Omaha. His schedule calls for a 50-pitch outing that could last three to four innings.
As Duffy rebuilds strength in his sore left shoulder, Royals manager Ned Yost confirmed he will return to the big-league rotation when he is ready. Duffy (2-3, 5.87 ERA) was on a three-start skid when the discomfort in his shoulder led to a stint on the disabled list.
Duffy could make two or three starts in the minors before the team deems him ready to return. Yost indicated the Royals could afford to take things slowly.
"We’ll make sure he’s ready to come back," Yost said before Sunday’s game against the Rangers. "We’re not rushing him back. We want to make sure that he feels good, that his pitch count’s built up and that he’s throwing strikes."
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It is too soon to say who Duffy would replace in the starting rotation. Chris Young could shift back to the bullpen, though the team views his recent two-start struggles as something of an aberration.