LOS ANGELES – Dodgers manager Don Mattingly announced that Hyun-Jin Ryu will pitch the Dodgers' U.S. opener Sunday night in San Diego.Ryu threw a 30-pitch bullpen session before Friday's game and said he felt no further pain in his right foot. He was questionable after tearing a toenail in his first start, Sunday in Australia."I feel OK," Ryu said through a Korean reporter who acted as his interpreter.The Dodgers had some uncertainty at the front of their rotation after Ryu injured himself pitching in Australia last weekend and Clayton Kershaw came down with a stiff upper back after the long flight home.