Mets randomly announced they will retire Jerry Koosman's number 36

Jerry koosman hi-res stock photography and images - Alamy

New York Mets to Retire 2 Legends Jersey Numbers Next Season - Sports Illustrated New York Mets News, Analysis and More

Mets to Retire Legendary Hurler Jerry Koosman's Number in 2020

Why are the New York Mets retiring Darryl Strawberry and Dwight Gooden's numbers before Gary Carter's? How do you feel about it? - Quora

New York Mets should consider these four players for jersey retirement

Remembering Mets History (1973): Jerry Koosman Wins April NL Pitcher of the Month

Jerry Koosman interview

Retired Number Is Latest Mets Head-Scratcher

NY Mets to retire pitcher Jerry Koosman's number next season

Mets retire Jerry Koosman's No. 36 in Citi Field ceremony

Mets to retire pitcher Jerry Koosman's number next season

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

Mets retire Willie Mays' No. 24 as Old-Timers' Day returns

Tom Seaver - Wikipedia