HONG KONG lost 2-0 against Guangdong in the Interport Cup yesterday, then lodged a protest claiming their hosts had fielded too many foreign players. The territory were left pinning their hopes on the outcome of an enquiry to be held this week after being comprehensively beaten in the first leg at the Worker's Stadium, Guangzhou last night. Hong Kong were outclassed and could easily have lost by a much larger margin as Guangdong struck the woodwork three times. But the territory cried foul after discovering Guangdong had fielded a total of four foreign players during the match - even though only three expatriate players had played at any one time. In the 85th minute Guangdong, who were fielding foreign players for the first time in the 17-year history of the Interport Cup, replaced Dalian's Wang Tao with star striker Li Bing, who hails from Liaoning. In doing so, say Hong Kong officials, Guangdong broke the rules. Hong Kong team manager Bruce Mok said: 'They made a mistake. We did not even register our fourth foreign player in our first 16 (Dave Clarkson). 'We have to discuss with the Guangdong FA about changing players. There is no clear definition regarding substituting a foreign player but, under international guidelines, Guangdong should have understood the rules. 'We have always played the Interport using a maximum of three registered foreign players. We don't know whether the result will be reversed but we feel what they did was wrong.' Li Bing had just returned from Italy where he played on the World Cup All-star team against Italian club Genoa and his appearance was really only an exercise in public relations as Guangdong were coasting and were clearly too strong for the territory. Regardless of whether yesterday's result is overturned, Hong Kong will have to knuckle down and raise their game if they are to reclaim the trophy they last held in 1993 when they play the second leg on Sunday at the Mongkok Stadium. Guangdong, who struggled in the Chinese Marlboro League last season, sliced open the territory's defence at will with some surging runs on both flanks and they controlled the midfield while looking very solid at the back. The writing was on the wall as they hit the woodwork after just five minutes play. Xie Yuxin's shot struck the cross-bar after he ran on to Lu Jianjun's header. Mid-way through the first half Fan Zhiyi almost scored with his back after a Hong Kong defender tried to clear the ball off the line. The ball rebounded off Fan's back and hit the right post. There was another huge scare for the territory in the 31st minute when striker Graham Harvey was called upon to clear Wang Tao's shot after another goal-mouth scramble. Towering striker Wang was the dangerman for Guangdong and he won his share of high balls in the danger area. Guangdong finally broke through when defender Peng Changying raced down the middle before delivering a lovely ball to Peng Weiguo who skipped the Hong Kong defence before pulling the b ll back from the right side of the box for Wang to half-volley home.. Wang had a chance to increase his tally in the 44th minute but his powerful downward header was well saved by goalkeeper Werner Kooistra. Harvey had a chance in the 10th minute but his shot was tipped over the bar by Ou Chuliang. And Tam Siu-wai probably had the best chance for the territory just before the break when he narrowly failed to latch on to Shum Kwok-pui's ball in the goalmouth. The second half followed a similar pattern as Guangdong continued to dominate their hosts with Lu Jiangjun's shot cannoning off the cross-bar in the 50th minute. Then Xie Yuxing shot just wide and Xie had his 60th minute effort spectacularly saved by the very busy Kooistra. Fan Zhiyi made it 2-0 to the delight of a capacity crowd when he eluded left-back Yau Kin-wai before letting loose a cannonball which left Kooistra with no chance in the 87th minute. Hong Kong were limping up front and Loh Wai-chi's half-hearted attempt a minute before the final whistle just about summed up the territory's performance. Hong Kong (4-4-2): Werner Kooistra; Chan Chi-keung, Roddy Manley, Yau Kin-wai, Lee Wai-man; Lee Kin-wo, Tam Siu-wai, Shum Kwok-pui, Lam Hing-lun (Loh Wai-chi 75); Tim Bredbury (Au Wai-lun 45), Graham Harvey. Guangdong (4-4-2): Ou Chuliang; Xie Yuxin (Hu Zhijun 85), Yiao Debiao, Peng Changying, Xu Hong; Chi Minghua, Peng Weiguo, Mai Chao, Fan Zhiyi; Wang Tao (Li Bing 85), Lu Jianjun. Man of the match: Wang Tao (Guangdong).