Jerry Koosman's number retirement, 08/28/2021
Charley Walters: Twins season tough on Justin Morneau in the booth – Twin Cities
Mets retire Jerry Koosman's No. 36 in Citi Field ceremony
Every MLB team's retired numbers – NBC Sports Chicago
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Jerry Koosman to Have Number Retired on August 28, 2021 - Metsmerized Online
Jerry Koosman to Have Number Retired on August 28, 2021 - Metsmerized Online
Cinco décadas después, Mets retiran el número 36 de Jerry Koosman – Diario Deportivo Más
SNY on X: Jerry Koosman's #36 will be forever retired by the Mets tonight. Gary, Keith, and Ron examine his legacy: / X
Mets will retire Jerry Koosman's number in 2020 – New York Daily News
Mets announce Jerry Koosman number retirement date –
