The Khalifa International Stadium hosted one of the tournament's most stunning group stage results as Japan defeated Germany 2-1, a victory that announced the Samurai Blue as genuine contenders and exposed vulnerabilities in the four-time champions' approach. Germany, seeking redemption following their 2018 group stage exit, arrived with confidence that their squad depth and tactical sophistication would secure comfortable progression. Japan, whose preparation had focused on counter-attacking efficiency, brought discipline that German quality would test. The opening period saw Germany dominate possession and territory, their patient buildup creating chances that Japanese defending initially handled. Ilkay Gundogan's penalty on 33 minutes, awarded after Japanese defending had fouled within the area, provided Germany's breakthrough and seemed to confirm pre-match expectations. The conversion was composed, low into the corner beyond Shuichi Gonda's reach. German supporters celebrated with the belief that their tournament had begun successfully. Japan's second-half response transformed match outcome. Manager Hajime Moriyasu's substitutions injected attacking quality, with Ritsu Doan's equalizer on 75 minutes demonstrating the impact that tactical adjustment can produce. The goal's construction was Japanese efficiency: rapid transition following German turnover, Doan's finish beyond Manuel Neuer showcasing composure that tournament football demands. Eight minutes later, Takumi Asano's individual goal, a run from the right that benefited from German defensive generosity, completed the turnaround that stunned German supporters. The final whistle sparked Japanese celebrations that acknowledged historic achievement, their victory over Germany matching their 2018 success against Colombia. German players collapsed in disappointment, their tournament opening producing the defeat that their 2018 group stage exit had previewed.