Hong Kong have every chance of upsetting the top-seeded Philippines, despite falling 2-1 behind in their Davis Cup Asia/Oceania Zone group two, first-round tie, non-playing captain Derek Ling Hay-ming said. The home team lost both their matches at Victoria Park centre court yesterday but can rescue the situation in the reverse singles today. Yu Hiu-tung, who lost the first set to the Philippines' Cecil Mamiit on Friday night before rain interrupted the match, failed to improve yesterday and went down 7-6 (7-2), 6-1, 6-1 as the visitors levelled the tie at 1-1. Martin Sayer had given Hong Kong the perfect start when he beat Treat Huey 6-4, 7-6 (7-0), 6-2 in the opening singles on Friday afternoon. Mamiit and Huey gave the Philippines the edge when they beat Brian Hung Lap-hei and Sayer 7-5, 6-3, 7-6 (7-4) in the doubles. 'The first reverse singles between Sayer and Mamiit will be crucial,' said Ling. 'If Sayer wins the match, we certainly have the advantage in the following one because Yu, if I field him, has good experience in the Davis Cup and can win his rubber.' The captain paid tribute to the performance of Sayer in the opening match as his big forehand caused Huey no end of trouble. 'Mamiit has been involved in two matches already and for a player of over 30, he may have fitness problems against the younger Sayer, who has a big serve and strong forehand,' said Ling. 'If Mamiit cannot respond well, Sayer will certainly have a chance.' Sayer was specially released by Radford University in the US to play for Hong Kong. The 21-year-old right-hander has never met Mamiit, who in 1996 was ranked as high as 72 by the ATP. Should Hong Kong lose to the Philippines, they will face the losers of the tie between Pakistan and Oman in July. And if they fail again, they will face a play-off from which the losers will be relegated to group three.