Phil Niekro, knuckleball specialist, dies at 81 - Sports Illustrated
Baseball Hall of Famer, knuckleballer Phil Niekro dies at 81 – Daily News
Remembering Phil Niekro, King of the Knuckleballers (1939-2020)
Phil Niekro, Atlanta Braves legend known for knuckleball pitch, dies at age 81
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Remembering Phil Niekro: 1939-2020 - Cooperstown Cred
Baseball Hall of Famer, knuckleballer Phil Niekro dies at 81
List of knuckleball pitchers - Wikipedia
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Phil Niekro, Hall of Fame Knuckleball Pitcher, Dies at 81 - The New York Times
Phil Niekro, Atlanta Braves legend known for knuckleball pitch, dies at age 81
Phil Niekro Dies: Hall Of Fame Knuckleball Pitcher Was 81 – Deadline
Hall of Fame knuckleballer Phil Niekro dies at 81
Phil Niekro, Baseball Hall of Fame knuckleballer, dies at 81