Indonesian media outlets have accused coach Kim Sang-sik of unsportsmanlike conduct for allegedly impeding an Indonesian player's throw-in during the 2025 AFF U23 Championship final.

Coach Gerald Vanenburg expressed frustration when Indonesian players were criticized after their loss to Vietnam in the 2025 Southeast Asian U23 Championship final.

Coach Kim Sang-sik displayed a mix of frustration and disappointment as midfielder Le Van Thuan squandered a golden opportunity during Vietnam's 2-1 win against the Philippines in the U23 Southeast Asian Championship semi-final on 25/7.

According to Indo News, Vietnam is theoretically stronger but victory against the Philippines in the Southeast Asian U23 Championship semi-final is not guaranteed.

Kickoff at 5 p.m. Midfielders Nguyen Dinh Bac and Khuat Van Khang start for Vietnam against Laos in their opening Group B match of the AFF U23 Championship.

Coach Kim Sang-sik and 23 Vietnamese players have arrived in Indonesia to compete in the Southeast Asian U23 Championship as the defending champions.