Japan striker Ritsu Doan said he was particularly delighted with his side's stunning victory over Germany at the World Cup on Wednesday after being forced to endure patronizing comments in Germany before he headed to Qatar.

Eight members of the Japan squad play for clubs in the German league, and goals from from Freiburg's Doan and VfL Bochum's Takuma Asano gave Samurai Blue their stunning come-from-behind victory at Khalifa International Stadium.

"Before I came to the World Cup, people in Germany were saying it would be an easy game against Japan," Doan told reporters on Thursday.