Rubuta ci gaba don wannan sakin layi - Lokacin da ya koma Pirates a watan Yunin 1969, ya jefa daga Pittsburgh bullpen ta hanyar 1970, ya bayyana a wasanni biyu na 1970 National League Championship Series
a kan Cincinnati da kuma aiki a total na daya bisa uku na wani inning. An sake shi a ƙarshen Oktoba, Gibbon ya shiga Reds a 1971 kuma ya buga 2.94 ERA kuma ya haɗu da mafi kyawun aikinsa don ceto tare da 11.