2025年10月，日本足球協會技術總監影山雅永因在飛往智利觀摩U-20世界杯途中，在法國航班上觀看涉嫌兒童色情影像，被法國法院判處18個月緩刑、罰款5000歐元，並禁止入境法國10年，此事件在國際足壇及日本社會引起強烈震動。

事件發生於影山雅永前往智利途中，他所搭乘的法國航空航班在巴黎戴高樂機場起飛前，空乘人員發現他在商務艙使用平板電腦觀看涉嫌兒童色情的影像。影山在事後辯稱，所觀看的影像為“AI生成”，並自稱是藝術家。庭審中，他承認觀看不當影像的行為，但主張自己不清楚這在法國屬於違法行為。

經法國法院審理，影山被以持有未成年人色情內容罪判決18個月緩刑，並處以5000歐元（約合4.1萬元人民幣）罰款。此外，法院禁止其在未來10年內從事與未成年人相關的工作，禁止入境法國，並將其列入法國性犯罪者名單。判決結果引起社會廣泛關注，尤其是在青少年足球與兒童保護領域，對其公職資格造成嚴重影響。

對此，日本足球協會於2025年10月7日宣布，解除影山雅永的技術總監職務，協會會長宮本恒靖公開譴責其行為“不可接受”，並就事件向社會致歉，承諾將加強內部管理及行業合規監督。影山雅永過去負責日本青少年足球發展工作，此事件不僅對其個人名譽造成重大打擊，也引發對日本足協在青少年培訓、職員監管及道德規範方面的廣泛質疑與討論。

In October 2025, Masahisa Kageyama, technical director of the Japan Football Association (JFA), was sentenced by a French court to 18 months probation, a €5,000 fine, and a 10-year ban from entering France after being found viewing child sexual abuse material on a flight to Chile to observe the U-20 World Cup. The case sparked significant concern both in the international football community and within Japan.

The incident occurred during Kageyama’s transit through Paris Charles de Gaulle Airport, when flight attendants on the Air France flight discovered him watching the illicit material on a tablet in business class. Kageyama claimed that the content was AI-generated and described himself as an artist. During the trial, he admitted to viewing the inappropriate material but argued that he was unaware that the act was illegal under French law.

The French court convicted him of possession of child sexual abuse material, issuing an 18-month suspended sentence, a €5,000 fine (approximately 41,000 RMB), and restrictions prohibiting him from engaging in work involving minors for 10 years. He was also added to France’s national sex offender registry. The verdict drew widespread attention, particularly given his role in youth football, and significantly impacted his professional standing.

In response, the Japan Football Association terminated Kageyama’s role as technical director on October 7, 2025. JFA President Tsuneyasu Miyamoto publicly condemned Kageyama’s actions as “unacceptable” and issued an apology to the public, promising to strengthen compliance and oversight within the organization. Kageyama had previously been responsible for Japan’s youth football development programs, and the incident raised serious questions about internal governance, ethical standards, and safeguarding practices within the JFA.