May 2, 2014 1:22 PM

Danny Duffy may be struggling, but his desire to win runs deep

When Danny Duffy starts for the Royals on Saturday against Detroit, the assignment will serve as the latest upheaval in a turbulent career. At 25, Duffy remains an enigma, capable of both brilliance and battiness. Rival evaluators question his mental toughness. Royals officials refer to him, more affectionately, as “a bull in the china shop,” an intense, team-oriented man whose desire to produce can sometimes be counter-productive.

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