Mets to retire 1969 World Series hero Koosman's number in August
Mets to retire Jerry Koosman's No. 36 in June - Newsday
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Mets to Retire Jerry Koosman's Jersey - The New York Times
Minnesota native Koosman to have his No. 36 retired by Mets in June - Post Bulletin
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Jerry Koosman's Mets number retirement is finally here
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2021 New York Mets Jerry Koosman Number Retirement Night Bobblehead SGA 1969
New York Mets - 📅 The date is set! 📅 We will retire Jerry Koosman's No. 3⃣6⃣ on Saturday, June 13 in a pre-game ceremony. 🎟️👉
Mets retire Koosman's 36 five decades after '69 heroics