Mets to retire pitcher Jerry Koosman's number next season
Mets retiring No. 36 of ex-pitcher Koosman in '20 - ESPN
Mets retire Koosman's 36 five decades after '69 heroics
Mets Retire 36 for Koosman - NY Sports Day
Mets to retire pitcher Jerry Koosman's number next season
Mets Retire Legendary Pitcher Jerry Koosman's No. 36 - Sports
Jerry Koosman of the New York Mets, center, is congratulated by
Mets retire Keith Hernandez's No. 17 in Citi Field ceremony
Mets Card of the Week: 1969 Jerry Koosman – Mets360