Japan tuned up for their 2018 FIFA World Cup qualifying showdown with Saudi Arabia with a convincing 4-0 win over Oman in Kashima.
Vahid Halilhodzic's side will welcome Saudi Arabia to Saitama next week knowing defeat could seriously hamper their chances of qualifying for Russia 2018 automatically from Group B of the AFC section.
Trailing their Arabian rivals by three points, and second-placed Australia by one, Japan will need to be on the attack and their forward line looked in fine fettle against Oman.
Yuya Osako's first-half double put Japan in command, with Hiroshi Kiyotake putting the result beyond doubt after the interval and Yuki Kobayashi capping the performance in second-half stoppage-time.
Such dominance will be key for boosting Japan confidence as they now turn their attention to repeating the feat against Saudi Arabia, who they beat 5-0 in the nations' last meeting, a 2011 AFC Asian Cup group-stage fixture.