NEW YORK TIMES BESTSELLER Every year, Major League Baseball spends more than $1.5 billion on pitchers--five times the salary of all NFL quarterbacks combined. Pitchers are the lifeblood of the sport, the ones who win championships, but today they face an epidemic unlike any baseball has ever seen. One tiny ligament in the elbow keeps snapping and sending teenagers and major leaguers alike to undergo surgery, an issue the baseball establishment ignored...