Mets announce Jerry Koosman number retirement date –

Jerry Koosman to Have Number Retired on August 28, 2021 - Metsmerized Online

Humble Jerry Koosman joins Mets hopefully-expanding pantheon with number retirement

Jerry Koosman number retirement set for June 13 - Amazin' Avenue

Jerry Koosman: NY Mets legend on jersey retirement, World Series

Mets Retire Legendary Pitcher Jerry Koosman's No. 36 - Sports Illustrated New York Mets News, Analysis and More

Mets to retire Koosman's number — Queens Daily Eagle

Ed Kranepool must be next Mets number retired after Jerry Koosman: Pantorno – Metro US

Jerry Koosman's No 36 to be retired by Mets in June

Ultimate Mets Database - Jerry Koosman

Jerry Koosman Autographed Jersey - Mets History

Humble Jerry Koosman joins Mets hopefully-expanding pantheon with number retirement

Mets will retire Jerry Koosman's number in 2020 – New York Daily News

Mets to Retire Jerry Koosman's Jersey - The New York Times

Jerry Koosman Mets Hall of Fame Plaque - Mets History

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