Zack Greinke, Shelby Miller, Patrick Corbin and Rubby De La Rosa were given spots when camp opened, which leaves Bradley fighting Robbie Ray, Zack Godley and Tyler Wagner for the final starting slot.
"Essentially, this is my third camp where I'm competing for a rotation spot, and this is easily the most relaxed I've been," Bradley said. "I guess it's just maturation. I finally understand I'm competing against myself. I'm not competing against Robbie or Godley or whoever else they say is in this competition.