US Open champion Emma Raducanu has sent a special Mandarin message to Chinese fans. The 18-year-old British superstar was the first ever qualifying to win a Grand Slam, blowing away all competition. Raducanu from Bromley won all 10 games without dropping a set. [Incredible sport victory](//www.thesun.co.uk/sport/16116425/emma-raducanu-us-open-win-rank-1996-world-cup/) On Saturday night. She defeated a fellow teenager [Leylah Fernandez 6-4 6-3 in the final](//www.thesun.co.uk/sport/tennis/16114376/emma-raducanu-us-open-fernandez/) , Consolidate her position as a new darling of British sports. And in a media interview [Pose with a trophy](//www.thesun.co.uk/sport/16116048/emma-raducanu-us-open-trophy/) The young man was asked if she wanted to say something for her fan base in Asia. Raducanu exchanged…