GLENDALE, Ariz. -- Zack Greinke, who was set back earlier this spring when he had to get a lubricating injection in his pitching elbow, said Friday he's not 100 percent sure he'll be ready for the start of the season."We'll see," Greinke said. "I've thrown enough that I should be ready. If I'm not, it's not because of lack of innings. It's just, I don't know, not getting ready fast enough.