GLENDALE, Ariz. -- If you're into circus metaphors, Dodgers pitcher Hyun-Jin Ryu is full of them. He is juggling delicate objects: media obligations, clubhouse etiquette, a new language and a new culture. He is walking a tightrope: If he gets too confident in his past success, Ryu risks falling; if he gets too intimidated by the major leagues he also will fall.