Twins prospect Kirby honing knuckleball in Arizona Fall League
SURPRISE, Ariz. -- Only one pitcher in the Arizona Fall League features a knuckleball. It danced in Devin Kirby's Salt River Rafters debut on Friday, almost too much. Kirby landed just 12 of his 31 knucklers for strikes, yet persevered nonetheless. The Twins right-hander entered with the bases loaded with