The longest day in Mets historyOn May 31, 1964, the Mets and Giants played a doubleheader that just wouldn't end5/31/2021, 2:00 PMAnthony McCarronMLB freelance writer/on-air talentOrlando Cepeda #30 of the San Francisco Giants bats against New York Mets during a Major League Baseball game circa 1964 at Shea Stadium in the Queens borough of New York City. / Focus on Sport/Getty Images