Phil Niekro, knuckleball specialist, dies at 81 - Sports Illustrated
With Phil Niekro's Death, Baseball Has Lost the Knuckleball and
Phil Niekro Dies: Hall Of Fame Knuckleball Pitcher Was 81 – Deadline
Hall of Fame pitcher Phil Niekro dies at 81
Baseball great Phil Niekro dies of cancer at 81
RIP Phil Niekro, 1939-2020
Saying goodbye to the knuckleball, and its master
RetroSimba Cardinals history beyond the box score
NATIONAL LEAGUE; Joe Niekro Captures No. 200 - The New York Times