Billion Win has been ruled out of a repeat bid for the Group Three Sha Tin Trophy tomorrow due to what trainer Gary Ng Ting-keung described as 'only a small problem'. The seven-year-old, who won last year's race by a head and is officially the second best horse in Hong Kong behind Fairy King Prawn, was withdrawn from the mile contest yesterday after developing heat in his off-fore fetlock joint. Ng said: 'I wasn't happy with the horse and I don't want him to run if he is not 100 per cent, but it isn't serious. He has had a lot of trouble in the past but this is nothing to do with that. This is just a small problem, but he has 133 pounds to carry on a firm track and if you race a horse like that with a small problem, it can become a big problem.' Billion Win's withdrawal is another blow for Ng, who has already seen the compulsory retirement this season of Kingston Treasure, another of his potential top-line performers, after a series of raceday misdemeanours. But the trainer said he expected Billion Win would reappear soon. 'The vet seems to think it is not too serious, so Billion Win can trot and canter for a month and then we will look around for a race,' Ng added. On the political front, Asian racing's growing importance globally looks likely to be recognised with a greater say on the International Federation of Horseracing Authorities (IFHA), the world governing body. The IFHA plans to ratify an increase in the size of its executive council from six to 10 when it meets early next year, with representation of the Asian Racing Conference going up from one member to three. The increase will give Asian racing authorities - particularly Hong Kong, Japan and Australia - a stronger presence in the industry as the council sets the rules and standards for international racing and is the ultimate power in world racing. Locally, the Hong Kong Jockey Club's Racing Committee yesterday released new guidelines governing the release of jockeys to ride overseas. Jockeys will be allowed up to four international trips per season providing they meet at least one of the following criteria: (a) a ride in a race of international Group One status; (b) part of a recognised jockeys' championship series in Japan or the United States; or (c) partnering a Hong Kong-based horse overseas. The guidelines come in the wake of Felix Coetzee's call-up to ride King Keitel in today's Caufield Cup in Melbourne and Winfried Engelbrecht-Bresges, the Club's director of racing, said they carried both an opportunity and a warning to jockeys. 'That Coetzee has been asked to ride a favourite in the race over all the riding talent there is in Australia and New Zealand must be considered a compliment,' Engelbrecht-Bresges said. 'And Hong Kong riders are being asked more and more to go somewhere to ride in major races. 'However, we have given guidelines to make it easier for such decisions to be made and to address the mindset of riders. 'We don't want anyone to get the idea that they can base themselves in Hong Kong, then ride wherever they like. We expect our jockeys to be here for training as well as races, so the more time they are away from Hong Kong, the more they miss.'