1901 – In a split at Boston, Baltimore 3B Jack Dunn is knocked out in game one by a foul ball off his own bat. He will be out of action for a week.

On August 9, 1901 — 1901 – In a split at Boston, Baltimore 3B Jack Dunn is knocked out in game one by a foul ball off his own bat. He will be out of action for a week.

Source:
Baseball Reference August 9
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game