Blackburn throws with such little effort that his fastball appears quicker than its 89 - 93 mph velocity , he has the ability to manipulate the shape of his curveball .
He owns a sinking changeup to keep left - handers in check .
Blackburn throws with such little effort that his fastball appears quicker than its 89 - 93 mph velocity , he has the ability to manipulate the shape of his curveball , and he owns a sinking changeup to keep left - handers in check .