MLB Jersey Numbers on X: The #Mets announce that number 36 will be retired for LHP Jerry Koosman in 2020. Manager Mickey Callaway switches from number 36 to number 26. Last worn
Mets retiring No. 36 of ex-pitcher Koosman in '20 - ESPN
Mets News: Mets to retire Jerry Koosman's number 36 in 2020. - Amazin' Avenue
NY Mets honor legend Jerry Koosman by retiring No. 36 jersey
MORE
MLB Jersey Numbers on X: The #Mets announce that number 36 will be retired for LHP Jerry Koosman in 2020. Manager Mickey Callaway switches from number 36 to number 26. Last worn