He joined the Mets again that September, going 3-for-10 in four games, but was not part of the "Miracle Mets" post season roster. Heise was sent along with Jim Gosger from the Mets to the San Francisco Giants for Ray Sadecki and Dave Marshall on December 12, 1969.
He rejoined the Mets in September, achieving a batting average of 3-for-10 over four games, but was not part of the "Miracle Mets" postseason team. Heise was traded along with Jim Gosger from the Mets to the San Francisco Giants on December 12, 1969, in exchange for Ray Sadecki and Dave Marshall.