Hennigan actually pitched the last of his Major League games in 1973 for the National League champs, appearing in 30 games on the mound, going 0-4 with a 6.23 earned run average.
He pitched 43.1 innings, purely in relief and posted three saves along the way, with 22 K’s to close out a five-year career that saw him play for the Cleveland Indians between 1969-1972, the that final season over at Shea Stadium in 1973.
He finished with a 17-14 record, with a 4.26 ERA and 188 strikeouts over 280 innings and 176 games, all but two out of the ‘pen.