Jerry Koosman to Have Number Retired on August 28, 2021
Mets retire Jerry Koosman's No. 36 in Citi Field ceremony
Mets' next retired numbers prediction
Jerry Koosman Mets Hall of Fame Plaque - Mets History
Jerry Koosman Autographed Jersey - Mets History
Jerry Koosman's Mets number retirement is finally here
Mets pick new date for Jerry Koosman's number retirement ceremony
Jerry Koosman's No. 36 retired by Mets
Jerry Koosman Jersey Retirement Ceremony
Jerry Koosman's No. 36 to Be Retired By Mets in June – NBC New York