Kashiwa Reysol produced the J. League's first win of the Asian Champions League this season with a 5-1 rout of Vietnamese champion Binh Duong on Tuesday.
Former Japan forward Masato Kudo led the way with a brace that earned him man-of-the-match honors for Reysol, who went top of Group E on four points from two games ahead of Jeonbuk Hyundai Motors.
Kim Chang-soo and captain Hidekazu Otani also scored for Tatsuma Yoshida's side, which was aided by an own goal and will face Vissel Kobe away in its J. League opener on Saturday.