30点のAndy Fletcher Baseball Umpireのストックフォト - Getty Images
MLB foreign substance: Ex-pitcher Mike Dunne bristles at checks
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Umpire checks for pine tar | 07/02/2017 | MLB.com
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MLB has a rule to prevent 'bad-faith' substance checks from Joe Girardi and managers like him | Sporting News
Scherzer blasts Manfred, substance checks: 'This is not the answer' | theScore.com
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Sergio Romo ready to strip for foreign substance checks
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With substance checks in full swing, pitchers league-wide are less than pleased - The Boston Globe
MLB introducing stricter checks for sticky substances | Yardbarker
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Umpire Substance Checks Put Pitchers in Awkward Positions - The New York Times
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/cdn.vox-cdn.com/uploads/chorus_image/image/70764601/usa_today_18107360.0.jpg "GDT: Hate having to travel all the way to Chicago from *checks notes* Chicago - DRaysBay")
GDT: Hate having to travel all the way to Chicago from *checks notes* Chicago - DRaysBay
MLB won't do sticky-substance checks at All-Star Game
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What is the MLB rule for sticky substances? - AS USA
Glove checks, hat changes and sticky questions: Tigers play first game under MLB crackdown - mlive.com
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Umpire Substance Checks Put Pitchers in Awkward Positions - The New York Times
MLB asks umps for more random checks on sticky substances
MLB/ Ohtani's 2-way play, Walsh's HRs lead Angels past ChiSox 7-4 | The Asahi Shimbun: Breaking News, Japan News and Analysis
