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KANSAS CITY, Mo. — The Kansas City Royals have placed left-handed pitcher Danny Duffy and right-handed pitcher Brady Singer on the 10-day injured list and infielder Ryan McBroom and right-handed pitcher Tyler Zuber have been recalled from triple-A affiliate the Omaha Storm Chasers.

Duffy is listed with a left flexor strain and Singer is placed on the list for right shoulder fatigue.

Singer is 3-7 with an ERA of 5.13 this season in 77.2 innings pitched, while Duffy is 4-3 with an ERA of 2.51 in 61 innings pitched

With the retroactive dates set, Duffy is eligible to return July 27 and Singer Jul7 28.