"McCarthy came out feeling well," said manager Dave Roberts. "Ryu threw well, three innings, felt as good as he's felt in any rehab start. That's exciting for us."
Roberts said both pitchers are on five-day cycles, so McCarthy will pitch again on Thursday and Ryu on Friday.
Yasiel Puig, out with a strained left hamstring, begin a rehab stint with Rancho Cucamonga Monday night.
Ken Gurnick has covered the Dodgers since 1989, and for MLB.com since 2001. This story was not subject to the approval of Major League Baseball or its clubs.