In Maryland, the Washington Senators start spring training with six knuckleballers likely to make the staff: Alex Carrasquel, Mickey Haefner, Dutch Leonard, Bill Lefebvre, Johnny Niggeling and Roger Wolff. Solid catcher Rick Ferrell will have to corral the flutterballs. Finally, Haefner, Leonard, Niggeling and Wolff will join Early Wynn in the starting rotation. The rest go to the bullpen.