For a century of baseball, give or take, the conventional wisdom has been that knuckleballs are hard to hit because they flutter, wobble or zigzag on their way to the plate. But a new study indicates that knuckleballs stick to their trajectory nearly as closely as every other type of pitch. But several factors make the knuckleball unique — and uniquely difficult to hit.

na | Bonnie Berkowitz and Alberto Cuadra — The Washington Post June 6, 2012
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