Coach Kim's dangerous move made U.23 Indonesia bow out in defeat.

U.23 Indonesia could not make powerful enough throw-ins into the U.23 Vietnam penalty area, when coach Kim Sang-sik had a 'strange' move.

U.23 Indonesia's throw-in weapon was disabled

U.23 Indonesia lost the final match of U.23 Southeast Asia 2025, when they were defeated by U.23 Vietnam with a score of 1-0 right at Gelora Bung Karno.

U.23 Vietnam won thanks to a reasonable counter-attacking strategy, taking full advantage of set pieces to score goals. At the same time, coach Kim Sang-sik and his team also won thanks to their "unique moves", including a very strange way to prevent strong throw-ins from U.23 Indonesia.

Many water bottles were arranged by the U.23 Vietnam coaching staff outside the sidelines to prevent U.23 Indonesia from throwing the ball hard.

PHOTO: DONG NGUYEN KHANG

In the second half, when the left wing of U.23 Indonesia was on the same side as the technical area of U.23 Vietnam, coach Kim Sang-sik and his assistants placed water bottles densely outside the sideline. With so many water bottles "blocking the way", U.23 Indonesia's runners had a lot of difficulty gaining momentum to make long throw-ins.

Thanks to the strange move of coach Kim Sang-sik, U.23 Vietnam could not successfully take advantage of strong throw-ins from the left wing. In the final moments of the match, a member of the U.23 Indonesia coaching staff realized the problem, but when he just stepped into the U.23 Vietnam technical area to swipe the water bottle, this member was immediately... dismissed by the referee with a red card.

Review of the final match between U.23 Vietnam and U.23 Indonesia: Despite conceding the game, coach Kim Sang-sik and his team still won the championship

Coach Kim Sang-sik also has "unique tricks" to psychologically inhibit opponents, as well as put pressure on the referee. The Korean coach constantly goes to the sidelines to urge and direct his players, giving information and instructions to change the playing style. Mr. Kim also encourages his players, standing side by side like a big brother, just like the "tiger" spirit that this strategist once shared in an interview with Thanh Nien .

Vietnam U.23 has completed a hat-trick of Southeast Asian U.23 championships, with titles in 2022, 2023 and 2025. However, this is the first time Vietnam U.23 has won the championship with an all-win record. Mr. Kim's students defeated Laos U.23 (3-0), Cambodia U.23 (2-1), Philippines U.23 (2-1) and Indonesia U.23 (1-0).

Source: https://thanhnien.vn/don-hiem-cua-thay-kim-khien-u23-indonesia-nga-mu-chao-thua-185250729224056544.htm