Knuckleball specialist Tim Wakefield decides to retire
Red Sox knuckleballer Tim Wakefield to announce retirement
Why are there no knuckleballers in professional baseball anymore
Notable Knuckleballers - Sports Illustrated
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Boston Red Sox legend Tim Wakefield dead at 57: Tributes pour in
Red Sox legend Tim Wakefield passes away at 57
Tim Wakefield career highlights
As far as knuckleball pitchers are concerned, do they get to throw
MLB: Ranking the 10 Greatest Knuckleballers of All Time
This Date in Pittsburgh Pirates History: July 31st, Too Many
