Japan got their Fifa Women's World Cup campaign off to a perfect start with a dominant win against debutants Zambia.

Hinata Miyazawa's two goals were separated by a Mina Tanaka strike before Jun Endo added a fourth.

Zambia goalkeeper Catherine Musonda got a second yellow card for conceding a late penalty in Hamilton, New Zealand.

Her replacement Eunice Sakala saved Riko Ueki's penalty but was ruled to have come off her line and the Japan striker slotted home the second effort.

Japan move top of Group C, above Spain on goal difference.

Futoshi Ikeda's side's late spot-kick means there has been a penalty awarded in all seven games of this year's tournament so far - but only three have been successfully converted.