WORLD class American rider Cash Asmussen has offered his services to joint champion trainer David Hill as stable jockey next season. Hill and current champion jockey Basil Marcus have already announced that they are parting company at the end of the present season, making one of Hong Kong racing's top jobs officially available. That news spread quickly on the international grapevine and the reigning French champion jockey, Asmussen, contacted Hill directly. Hill said yesterday: ''He has told me that he is very interested in coming to Hong Kong for me and he is obviously a top quality rider. ''It came rather out of the blue although I had an earlier approach on his behalf. I have not really sat down to think about it because we have a long way to go this season and I have already said that I am not that bothered about having a stable jockey next season,'' Hill added. Asmussen, who has ruled supreme in France for several seasons, rode in Hong Kong last month at the International Races meeting but was out of luck on the John Hammond-trained Voleris in the Bowl. He is known as a hard-headed businessman as well as a top performer in the saddle but Hill said: ''There has been no talk of terms at all. It is much too soon for that.'' Hill faces one major problem with the Texan as he is under contract to ride in France until the end of the present season - and that means early December. The French season traditionally starts earlier and ends later than in Britain or Ireland. ''He has told me that he would be available from the start of January next year and that might be a bit late really,'' said Hill, who shared the championship with John Moore last season and is currently on the 19-winner mark. However, even if Hill does not reach an agreement with Asmussen, Hong Kong fans could still be seeing the acknowledged superstar in action next season. The Royal Hong Kong Jockey Club's director of Racing, Philip Johnston, said yesterday: ''I am aware of Asmussen's approach to David Hill and that it might be difficult for them to sort out an agreement because of existing arrangements in France. ''But we would certainly be pleased to entertain an application from him if he wanted a position as a Club rider on a three-month international licence. ''That, of course, would be entirely up to him but he is a very major name and we would certainly give any application from him very serious consideration.'' The Jockey Club's policy of licensing big name riders for three months has been a great success - and it is likely to be widened next season. The failure of at least two retainers between trainers and jockeys this season and the disqualification of Darren Beadman which broke up another one, has prompted the Licensing Committee of the Jockey Club to look again at stable retainers. Although it has not yet been formally approved, it is thought likely that no more than six retainers would be approved next season as opposed to 10 at the beginning of the present campaign. That would then pave the way for more international licences to be issued, particularly in the middle part of the season which coincides with the close season in Europe. The array of name riders gives local racing a much higher profile internationally - and pleases punters and smaller trainers alike. Declan Murphy continued his brilliant start to his tipping career with a 500-1 five-timer at Sha Tin yesterday. The former Eclipse Award-winning rider in the States, who spent five years in the territory riding for Eddie Lo and Geoff Lane before joining his brother Joe in Macau, was on the mark with Invincible (5-1), Allegresse (4-1), Splendid Feeling (4-1), Jharna(5-2) and Full Speed Ahead (5-2). No wonder the professionals consult the Racing Post.