Former college quarterbacks try to learn the knuckleball while competing for a spring-training spot with the Arizona Diamondbacks.
Ended
The Next Knuckler
February 13, 2013
February 21, 2013
1
4
English
Major League Baseball Productions
MLB Network
Conclusion of the competition among former college quarterbacks attempting to learn the knuckleball and take part in Diamondbacks spring training.
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