HONGKONG'S fragile team unity will be put to its first test tonight when they take on Kuwait in a World Cup warm-up match in Singapore. The players step out for the first time since a bitter selection squabble between arch-rivals Eastern and South China. The five-strong South China contingent withdrew from the original squad after the Caroliners management expressed anger at the larger number of Eastern players who had been chosen. Of the five, only club skipper Chan Ping-on, nursing a broken arm, was injured. A crisis meeting of club managers led to a new squad being selected to the satisfaction of both teams. The Hongkong squad will be aiming to put all those troubles behind them with victory tonight. The team left for Singapore yesterday in high spirits, hopeful their build-up for next month's first series of World Cup qualifying matches in Beirut would start on a high note. A 17-strong pool flew out of the territory yesterday, leaving behind four players who will join their colleagues in Singapore tomorrow. Wong Wai-tak and Chan Tsz-kong of Sing Tao and Kitchee goalkeeper Chung Ho-yin were involved in a First Division fixture last night while Eastern midfielder Tam Siu-wai was taking his driving test. Hongkong coach Chan Hung-ping said he would have a chance to experiment with his line-up tonight. ''It's just a friendly game and we need to see how the players perform in their given roles. We can always make changes for our second match on Sunday,'' said Chan. The last time the sides met was at the 1990 Asian Games in Beijing, when Kuwait, despite their full team being unavailable because of the Gulf War, beat the territory 2-1.