Jerry Koosman Stats, Fantasy & News
Jerry Koosman- Mets All Time Lefthander (Part Three 1974-1985)
Jerry Koosman: NY Mets legend on jersey retirement, World Series
Ultimate Mets Database - Jerry Koosman
Jerry Koosman - Mets History
Ultimate Mets Database - Jerry Koosman
Jerry Koosman number retirement set for June 13 - Amazin' Avenue
Jerry Koosman- Mets All Time Lefthander (Part Three 1974-1985)
Ultimate Mets Database - Jerry Koosman
Jerry Koosman- Mets All Time Lefthander (Part Three 1974-1985)
April 23, 1969: Jerry Koosman gets his first win in Mets' miracle season – Society for American Baseball Research
Jerry Koosman - Mets History
Ultimate Mets Database - Jerry Koosman
Jerry Koosman Sets Early Franchise Record - Mets History