Freshly crowned the world champion, Korean badminton star An Se-young said Tuesday she will now turn her focus to defending her Asian Games title next month in Japan. An arrived back home early Tuesday, two days after winning her second career world title in the women's singles in New Delhi. An, world No. 1, defeated second-ranked Akane Yamaguchi of Japan 21-17, 21-14 in the final to cap a flawless, six-match run, during which she did not lose a game. It was An's first tournament back since a left foot injury forced her to withdraw from the Japan Open in July after just one match. "I was quite nervous because this was my first competition back from the injury and I only tried to focus on getting my feel back on the court," An told reporters gathered at Incheon International Airport, just west of Seoul. "I did not have high expectations for myself, and I was surprised to be able to bring home such a great result." An admitted she was not completely pain-free throughout the tournament but her conditions improved as the event progressed. "With some lingering pain, I think I was hesitant in t