Jerry Koosman's Mets number retirement is finally here
Mets to Retire Jerry Koosman's Jersey - The New York Times
Mets retire Jerry Koosman's No. 36 in Citi Field ceremony
Jerry Koosman's No. 36 retired by Mets
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Jerry Koosman – Society for American Baseball Research
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Jerry Koosman to Have Number Retired on August 28, 2021
Mets should retire Jerry Koosman's number this year regardless of
Mets retire Jerry Koosman's No. 36 in Citi Field ceremony
Mets retire Willie Mays' No. 24 as Old-Timers' Day returns - CBS
