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Jeff Bagwell vs. Don Mattingly
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Yankees grooming policy origins
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Bronx bristle: Yanks growing mustaches during winning streak - Deseret News
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An Appreciation for Don Mattingly's Mustache in the 1980s - Men's Journal
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Yankees Editorial: Brett Gardner's Mustache Campaign
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New York Yankees players grow mustaches during hot streak - Sports Illustrated
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Mitchell & Ness Men's Don Mattingly New York Yankees Authentic Cooperstown Jersey - Macy's
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Max Goodman on X: Here's new #Yankees hitting coach Sean Casey, rocking a mustache for the first time in his life in honor of his childhood idol Don Mattingly. He says this
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The best sports mustaches of all time
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The Yankees' appearance policy and why it should stay, Bronx Pinstripes
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1993 Studio Don Mattingly New York Yankees #193
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Don Mattingly, Raised a Yankee and Happy to Be a Dodger - The New York Times
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Judge homers twice, Yankees beat O's 5-3 for 3rd series win
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Don Mattingly takes coaching job with Yankees rival, passes on YES broadcast opportunity