Former college quarterbacks try to learn the knuckleball while competing for a spring-training spot with the Arizona Diamondbacks.
John David Booty
David Greene
Josh Booty
Ryan Perrilloux
Kevin Millar
Score: 7.7
Score: 4.8
Score: 7.0
Score: 0.0
Score: 0.0
Score: 5.9
Score: 0.0
Score: 5.8
