Mets retire Koosman's 36 five decades after '69 heroics
Mets retire Keith Hernandez's No. 17 in Citi Field ceremony
2021 New York Mets Jerry Koosman Number Retirement Night Bobblehead SGA 1969
Mets retire Keith Hernandez's No. 17 in Citi Field ceremony
JERRY KOOSMAN New York Mets 1969 Home Majestic MLB Throwback Jersey
Mets retire Willie Mays' No. 24 as Old-Timers' Day returns - CBS New York
Mets to Retire Jerry Koosman's Jersey - The New York Times
Jerry Koosman's No 36 to be retired by Mets in June - ESPN
Keith Hernandez Joins Short List Of New York Mets With Retired Jerseys