Urawa Reds defender Wataru Endo is expecting a feisty atmosphere in his first Saitama derby against Omiya Ardija on Sunday.

But the Japan Under-23 captain knows the stakes will be even higher at the Rio Olympics this summer.

Urawa takes on Omiya with both teams currently enjoying a rich vein of form, with Urawa on top of the J. League table midway through the first stage and Omiya fifth in its first season back in the top flight.