Sonny’s way: Righty brings arsenal to Yanks

Sonny Gray’s fingers were talking. The right-hander, standing in the visitors’ clubhouse at Citi Field, was detailing the essence of own 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.