May 19, 1985
Kwok later became the coach of the Hong Kong soccer team, his and the team's finest hour was definitely the famous upset victory against China by 2-1 at the Workers Stadium in Beijing, China on May 19, 1985, during a 1986 FIFA World Cup qualifying game.
Although the two teams drew 0-0 in their first match in Hong Kong, China was considered to be stronger and was the clear favourite to win the group. Due to superior goal difference, China only needed a draw to proceed to the next round. However, a stunning 20 yard freekick by Cheung Chi Tak (張志德) opened the scoring. China replied with Tang Yaodong (唐曉東)'s goal but another well taken goal by Ku Kam Fai (顧錦輝) sealed the win for Hong Kong and sent China out of the 1986 World Cup.
The loss to Hong Kong delayed China's World Cup entry for another 16 years before they finally appeared in Korea Japan 2002. After the game, Chinese fans rioted outside the stadium, while the Hong Kong team received a heroes' welcome at the Kai Tak Airport.
The victory was passionately remembered by Hong Kong soccer fans as "The 519 Victory".
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