A game ball with a generally spherical inner ball and a cover
substantially covering the inner ball. The inner ball has first and
second halves divided by an imaginary equatorial plane. There are
circumferentially spaced openings in the first half of the inner ball and
openings in the cover aligned with the openings in the inner ball. The
game ball curves away from the openings when thrown and thus may be used
for learning how to throw and hit breaking pitches.