"There's a difference between pain and normal soreness, and what we talked about this morning was normal soreness, and that's good because that's what you expect," Roberts said. "There's no concern. Anyone is going to have normal soreness, and if there wasn't any normal soreness then the intensity wouldn't have been there, so that's what we expected and hoped."
Ryu, who is recovering from left shoulder surgery that sidelined him for the entire 2015 season, is not expected to throw 200 innings in '16. It's also uncertain if he will be ready for Opening Day.
The Dodgers have not set a hard date on when they would like Ryu to start throwing his secondary pitches. Instead, they are focused on "upping the volume" of his fastballs.
• Position players are scheduled to report to camp Wednesday, and the first full squad workout is scheduled for Thursday. Adrian Gonzalez, Kiké Hernandez, Micah Johnson, Joc Pederson, Yasiel Puig, Corey Seager, Trayce Thompson, Justin Turner, Chase Utley and Scott Van Slyke have already been in camp for several days.
Hall of Fame pitcher Greg Maddux, recently hired as special assistant to president of baseball operations Andrew Friedman, is also expected in camp Wednesday.
• Scott Kazmir, Alex Wood, Brandon Beachy, Mike Bolsinger, Pedro Baez, Ian Thomas, Chris Anderson, Jose De Leon, Jharel Cotton and Jacob Rhame also threw their second bullpen session Tuesday.
Jesse Sanchez is a national reporter for MLB.com. Follow him on Twitter @JesseSanchezMLB. This story was not subject to the approval of Major League Baseball or its clubs.