He made his Major League debut on September 2, 1973, against the Atlanta Braves, starting the second game of a doubleheader. D'Acquisto allowed two runs in 4.2 innings and did not get the decision.
On September 2, 1973, D'Acquisto made his Major League debut for the team, playing the second game of a doubleheader against the Atlanta Braves. He pitched 4.2 innings, giving up two runs, but did not earn the win.