Definition of "knuckleballers" []

• Plural form of knuckleballer. (noun)

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• "Most knuckleballers throw the pitch by pressing their index and middle fingers into the ball."
• "Five of the elite knuckleballers of all-time—Phil Niekro, Charlie Hough, Joe Niekro, Dutch Leonard and Ted Lyons—all had lower ERAs in their age 35-39 seasons than they did between the ages of 30 and 34."
• "When asked if shirts with his photo were on sale, Dickey said, They don't make shirts for 36-year-old knuckleballers."