HONG KONG may have to pull out of the men's gymnastics team event at the Commonwealth Games after an injury to Leung Kwok-keung and a doubt hanging over Lok Chuen-yung. Leung is expected to be out for about six weeks after fracturing the lower part of his right leg while dismounting from the pommel horse during training. The Hong Kong camp at the athletes' village received an emergency call from the gymnasts' training venue and a physiotherapist was quickly dispatched. Leung, 18, was rushed to the Jubilee Hospital, where his leg was put in a cast. Lok, meanwhile, sprained his wrist in training, but is hopeful of still competing. Hong Kong team physio John Moses said: ''Leung fell on his leg and fractured the lower one-third of his leg. ''It will take at least six weeks before he can think about competing again. ''At the moment, Lok will be taking part. He wants to give it a go.'' The four-man gymnastics squad, which also includes Lee Tak-ming and Wong Kim-fai, were due to compete in the men's team event. The team event requires all four gymnasts to compete in the six disciplines with the top three scores counting towards the final total. Vivien Fung, one of the Hong Kong officials, said: ''It all depends on Lok. He feels confident of taking part, but if he cannot, Hong Kong will then have to withdraw from the team event.'' Should that happen, the territory's men will only have the individual and apparatus events to look forward to. Moses reported a clean bill of health for the rest of the squad, with minor complaints of soreness from some of the badminton players. The badminton squad begin their campaign for glory in the mixed team event against defending Commonwealth champions and favourites England. Hong Kong must finish in the top two of their six-team preliminary Group A to be sure of at least a bronze and a repeat of their success at the 1990 Commonwealth Games in Auckland, New Zealand. They have further matches against a qualifying team and the relatively inexperienced South Africans. Manager Diana Lo Leung Bik-luen said youngsters Ma Chi-kong and Tam Kai-chuen will contest the men's doubles, with Chan Siu-kwong being rested for the mixed doubles. ''England and Canada have more depth than us, but I told the team that we are the dark horses and we can finish in the top two.'' she said. ''If we were in the other group, we would definitely have a chance of winning a medal.'' Malaysia is the only recognised country in Group B. The lawn bowls squad also start their quest for medals. The women's fours team, bronze medallists in Auckland, face a stern test in their opening Pool A match against a strong English foursome. They also take on Western Samoa. Ken Wallis makes his international singles debut for Hong Kong against Canada's Mark Gilliland. Wallis' selection was criticised by former singles player Mark McMahon, who won silver in Auckland. And the policemen must now undertake the painstaking task of trying to emulate McMahon by going through to win his preliminary group and win a place in the gold medal play-off. The men's fours of Noel Kennedy, George Souza, Danny Ho and Mel Stewart meet the powerful Scots in their Pool A opener. Meanwhile, shooter Gilbert U will take part in next week's centre-fire pistol competition with his repaired gun. U damaged his gun earlier this week and unsuccessfully tried to import a replacement from Hong Kong. He had it fixed by a local gunsmith, although he does not think the weapon will work perfectly. The cyclists are also gearing up for the men's team trial while the main focus of the Games will centre around the swimming pool at Saanich Commonwealth Place.