Quit now, Adam! In the Cardinals’ 10 – 4 win over the Giants, rookie Adam Wainwright pitches 3 innings in relief for the victory, and homers in his first major league at bat, on the first pitch.
On May 24, 2006 — Quit now, Adam! In the Cardinals’ 10 – 4 win over the Giants, rookie Adam Wainwright pitches 3 innings in relief for the victory, and homers in his first major league at bat, on the first pitch.
Source:
Baseball Reference May 24