August 8, 2013 8:45 PM

Royals option Duffy to Omaha, promote Bueno to aid bullpen

Royals left-hander Danny Duffy is heading back to the minors after his first big-league appearance in nearly 15 months. The club optioned Duffy to Class AAA Omaha, in a move that was expected, prior to Thursday’s opener to a four-game series against the Boston Red Sox at Kauffman Stadium.

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