Hall of Fame pitcher Phil Niekro, famous for signature knuckleball, dies at 81 - ESPN
Baseball Hall of Famer, knuckleballer Phil Niekro dies at 81
Phil Niekro, Hall of Fame Knuckleball Pitcher, Dies at 81 - The New York Times
Phil Niekro The History of the Atlanta Braves
Phil Niekro Braves Hall of Famer dies at 81
Phil Niekro, Baseball Hall of Famer and knuckleballer, dies at 81 – The Denver Post
Hall of Famer, knuckleballer Niekro dies at 81, Sports
Phil Niekro dies at 81
With Phil Niekro's Death, Baseball Has Lost the Knuckleball and Its Master - The New York Times