Ryu, given an extra day of rest after his first bullpen session on Saturday, returned to the mound on Tuesday with a 43-pitch session focused on his out pitch, the changeup. Ryu said he threw too many balls with his fastball.
Ryu said he was "grateful" for his manager's comments, but he was "not too worried" about getting credit.
His main concern this spring is to establish a conditioning foundation that will improve his chances of avoiding the shoulder fatigue that plagued him last year.
He threw five bullpen sessions while training with the Korean team LG before the Dodgers opened training camp.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.