's fingers were talking. The right-hander, standing in the visitors' clubhouse at Citi Field, was detailing the essence of his mad science, using its fundamental instruments.
Gray etched in the air the endless directions a baseball could move -- the world of possibilities into which the variance of finger pressure can breathe life. This is the world of the Yankees' newest rotation linchpin.
"People ask me, 'What are you throwing more of? Are you doing this? Are you doing that?'" Gray said. "You kind of laugh. Because it's just a manipulation of the baseball. It's finger pressure -- gripping the same pitch and spinning it a little different; throwing it a little harder, a little slower.