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Today in 1969 Cubs history: A disputed call likely costs the Cubs
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Wilhelm opened Cooperstown doors for relief pitchers
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2010 Stockton Ports Media Guide by Kristin Pratt - Issuu
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FIRPO MARBERRY - Cooperstown Cred
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2010 Stockton Ports Media Guide by Kristin Pratt - Issuu
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The First Relief Pitchers, by John Thorn
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Nolan Ryan Shines in Game 3 of 1969 NLCS - Mets History
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CQ Researcher - The Future of Baseball
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The History of Relief Pitching Part Four: 1988-Present
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The History of Relief Pitching Part Three: 1969-1987 - Cooperstown
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The History of Relief Pitching Part Three: 1969-1987 - Cooperstown
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Three Minutes to the Perfect Pitch with Brant Pinvidic