HONGKONG Football Association chairman Victor Hui Chun-fui is to step down from his post after two years at the helm. Hui said he will not seek re-election for the top post when the HKFA holds its annual general meeting in July, saying he was ''mentally and physically'' drained from the job. ''I've been involved in soccer for 25 years and I think it's about time for me to take a long rest. This is my ninth year as a chairman.'' His first spell as chairman began in 1976. ''The past two years in particular have been stressful especially with the five-a-side world championships,'' he added. ''I've fulfilled my promise to lead the association for two years and it's now time for me to step down now.'' Hui had worked tirelessly to ensure the five-a-side world championships - the biggest soccer tournament ever staged in the territory - was a success last November. He said he had no intention of reconsidering his decision or returning to the post in the near future. Hui was first involved in soccer administration as South China's assistant manager in the early seventies, following that with a six-year spell as manger. Hui, who is also the South China Athletic Association vice chairman, supported the move to bring foreign players back to the territory three years ago. But his parting advice was that it would be unwise of the HKFA council to increase the quota from five to six per club. ''The optimum number would be three,'' he said. ''That's usually the case for most countries. I would not be in favour of clubs having six players each. You have to give local players a chance.'' As the season continued to play itself out, Hui's former team, South China, gained a measure of revenge when they reversed Sunday's 1-0 defeat by Ernest Borel to win a First Division match at Mongkok Stadium last night. Bosnian striker Anto Grabo grabbed the winner in the 32nd minute, picking up Chiu Chung-man's through ball before slamming home. South China, who dominated the match, have leapfrogged Michelotti to occupy third spot in the table with two games remaining of campaign which has already seen them yield their championship to rivals Eastern. Nominations have begun to elect Hongkong's Footballer of the Year, worth $6,000 to the winner. Eleven outstanding footballers plus two players under the age of 23 will be elected and a sportsmanship award will also be presented. The best foreign player and the 14 outstanding players will win $1,200.