Anxiety grew for Greinke as he made his way through professional baseball and boiled over in 2006, when he left the Kansas City Royals during spring training for treatment of social anxiety disorder. Growing up, Greinke was taught to do what he wanted to do, so when the anxiety made playing baseball a chore, he took the lesson to an extreme level by looking for an exit from the game that had made him famous. Certainly, anxiety is there, and probably always will be, lurking in the back of his mind. I don't get stressed by it," Greinke said Friday from the Dodgers' spring training facility. With the medication, Greinke returned to baseball after walking away in 2006, won the 2009 American League Cy Young Award and signed a record-breaking $147 million deal to pitch for the Dodgers. "At the time, I didn't drink or smoke, and thought that the only way to get through it was to get involved in that stuff, but that would just temporarily help," he said.