By Jon Lees Aidan O’Brien praised the standard of Hong Kong racing after the top trainer finished out of the winners’ spot at the Longines Hong Kong International Races. The Ballydoyle trainer had assembled his strongest ever team for the last big international Flat meeting of 2023. He was mobbed by Hong Kong racing fans, a lucky few of whom got their racecards signed by the world’s top trainer. His quartet included the multiple Group 1 winners Luxembourg and Warm Heart for the £12 million fixtures. But Warm Heart was beaten into third in the Vase and Luxembourg just fell short of overhauling …