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Mets announce plans to retire numbers of 1986 World Series
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Jerry Koosman – Society for American Baseball Research
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Jerry Koosman - Mets History
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Kodai Senga tosses quality start as Mets lose to Twins
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Jacob deGrom dominates Phillies in Mets' win
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Mets Pitcher Named an All-Star
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Jerry Koosman: Playoff Ace for NY Mets - Mets History
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New York Mets All-Time Greats 50th Anniversary Commemorative
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This Day in NY Mets History: Jerry Koosman makes his MLB debut
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Dwight Gooden and the Top 15 Starting Pitchers in New York Mets
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Jerry Koosman Records Winning Rookie Season - Mets History
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New York Mets putting 'soft' innings cap on Matt Harvey next
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Morning Briefing: Edwin Díaz To Throw Bullpen Session Monday
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Mets could use more of this lefty-hitting dominance: Sherman
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DeGrom had nothing working, and meant everything to Mets