Having walloped all-comers in the Hong Kong Sprint for the past two runnings, the local short-course talent had been starting to look as though a rebuilding period was under way earlier this year. The feature sprints had lacked depth, with the Centenary Sprint a match race between Absolute Champion and Scintillation, the Chairman's Sprint Prize a narrow if dominant position for Absolute Champion in the second leg and Joyful Winner running out an easy winner in the third when Absolute Champion had a fever. Then along came the three-year-olds and - never mind the rebuilding phase - the walls were up again. Tomorrow's showdown between outstanding three-year-olds Medic Power, Sacred Kingdom and Green Birdie will be required viewing for the connections of all or any sprinters planning to make the trip here in December. And to think that Green Birdie - already with a second placing to Australia's best sprinting mare Miss Andretti - is probably the third-ranked of them pending tomorrow's outcome. And while Warrior defeated what can be described as an average bunch in Class Four at his debut on Sunday, few horses have won more impressively on their debuts. Even the lead-ups for the Hong Kong Sprint will come up far too quickly for Warrior next season, but few would doubt that he will be a contender in higher grades by early 2008. Then it will be up to him to make the leap into the top category. But for a jurisdiction with three-year-olds numbering only in the hundreds, to be looking at as many rising four-year-olds with such serious talent is encouraging for Hong Kong, perhaps not so enticing for the potential visitors.