Why are there no knuckleballers in professional baseball anymore? Is it a physiological issue, the difficulty catching a knuckleballer, or something else? - Quora
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The end of the MLB knuckleball? Steven Wright and his surgically repaired elbow hope not – Daily News
Why are there no knuckleballers in professional baseball anymore? Is it a physiological issue, the difficulty catching a knuckleballer, or something else? - Quora
![Pitcher Matt Waldron continues knuckleball transformation as San Antonio Missions open Double-A season Pitcher Matt Waldron continues knuckleball transformation as San Antonio Missions open Double-A season](https://s.hdnux.com/photos/01/25/07/07/22311412/4/1200x0.jpg)