Since different spins on the ball cause it to drop or curve due to friction between the laces and the air, the batter needs to pay close attention.
(it; to curve; due to friction between the laces and the air) (different spins on the ball; cause; it to drop or curve due to friction between the laces and the air) Context(different spins on the ball cause,List([6, 39))):(it; to drop; ) (the batter; needs; to pay close attention) Context(the batter needs,List([107, 123))):(the batter; needs to pay; close attention)
different spins on the ball cause,List([6, 39)) the batter needs,List([107, 123))
it different spins on the ball it the batter the batter
to curve cause to drop needs needs to pay
due to friction between the laces and the air
it to drop or curve due to friction between the laces and the air
to pay close attention
close attention