Mets to Retire Jerry Koosman's Jersey - The New York Times
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Mets to retire 1969 World Series hero Koosman's number in August
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Mets to Retire Jerry Koosman's Jersey - The New York Times
Jerry Koosman's No. 36 retired by Mets
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Mets Retire Legendary Pitcher Jerry Koosman's No. 36 - Sports Illustrated New York Mets News, Analysis and More
Thrilled to be 'joining a great crew,' Jerry Koosman, 78, has jersey retired by New York Mets - ESPN