Japanese pitcher Kenta Maeda homered in the second at-bat of his major league debut with the Los Angeles Dodgers on Wednesday night and beat the Padres 7-0, making San Diego the first team in major league history to be shut out in its first three games. The Padres were outscored 25-0 in the opening series against the Dodgers. With one out in the fourth, Maeda drove an 0-2 pitch from Andrew Cashner (0-1) into the seats in left field.