Mets pitcher R.A. Dickey and Orel Hershiser on the making of a knuckleballer - ESPN The Magazine Interview Issue - ESPN
As far as knuckleball pitchers are concerned, do they get to throw what they want, or are there signs for them as well? - Quora
Phil Niekro, Hall of Fame knuckleballer, dies of cancer at 81
RA Dickey, Coyle and Sharpe, and Mark Frauenfelder
Why are there no knuckleballers in professional baseball anymore? Is it a physiological issue, the difficulty catching a knuckleballer, or something else? - Quora
The Elusive, Endangered 'Knuckleball' : NPR
Ex-Red Sox knuckleballer Wakefield dies at 57 : r/sports
still left standing
The Knuckleball Can Devastate, So Why Don't All Pitchers Throw It? : The Two-Way : NPR
With Faith And Focus, Mariano Rivera Became Baseball's 'Closer' : NPR
Why aren't there more knuckleball pitchers? - Quora
Knuckleball The ARMory Power Pitching Academy
R.A. Dickey: On 'Winding Up' As The Lone Knuckleballer In The Majors : NPR
January, 2021