Today marks the 100th anniversary of the beaning of Ray Chapman who was a Shortstop for the Cleveland Indians. Chapman was drilled with a pitch to the head by New York Yankees starter Carl Mays at the Polo Grounds on August 16, 1920. Chapman would pass away the next morning after head surgery to relieve pressure on his brain.
The article The most tragic pitch in MLB history, 100 years later by Mike Vaccaro from the New York Post dated August 15, 2020 states:
"Through the end of the 2019 season, there were 220,855 games played in the history of major league baseball. Hitters have come to the plate 15,106,184 times, and 111,521 hitters who were hit with pitched balls — some of them striking at 95 mph or higher. There were untold thousands of line drives struck, some hitting skulls and temples and throats at upwards of 110 mph. There has been but one fatality. In a sense, that is baseball’s greatest miracle."
I highly recommend reading The Pitch that Killed: The Story of Carl Mays, Ray Chapman and the Pennant Race of 1920 by Mike Sowell.