|Born: March 12, 1945|
|Died: May 2, 1997 (aged 52)|
Kansas City, Missouri
|June 20, 1969, for the Kansas City Royals|
|Last MLB appearance|
|August 1, 1970, for the Kansas City Royals|
|Earned run average||6.17|
Donald Lee O'Riley (March 12, 1945 – May 2, 1997) was a Major League Baseball pitcher who played for two seasons. He pitched in 18 games for the Kansas City Royals during the inaugural 1969 Kansas City Royals season and nine games during the 1970 Kansas City Royals season.
O'Riley died at age 52 after being fatally shot during a convenience store robbery.
- Career statistics and player information from Baseball-Reference, or Baseball-Reference (Minors)
- Venezuelan Professional Baseball League statistics
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