World No. 1 easily beaten but claims all is well with her game. Osaka surprisingly split with coach in run up to Dubai tournament. LONDON: Naomi Osaka said she is not worried after the world No. 1 was shocked in the second round at the Dubai Tennis Championships. The two-time Grand Slam champion was convincingly beaten 6-3, 6-3 by Kristina Mladenovic in her first match since she memorably won the Australian Open last month — her second consecutive Slam success. Heading into the clash there was much talk about her lack of action on court and her split with coach Sascha Bajin. She said there was nothing to the split with Bajin other than “happiness was more important than success.” And having been easily beaten by the Dubai-based Frenchwomen Osaka said she was not troubled by her form. “The Australian Open was not even a month ago,” Osaka said. “I mean, this was just one match. I feel like even if I don’t win any matches for the rest of the year, I wouldn’t say I’m concerned. “I think I’m pretty young. I still feel like I have a lot to learn.” The Japanese star, who became the first Asian woman to reach the summit of the rankings, added that the shock defeat might actually work in her favor. “For me, that’s sort of my biggest thing after this match. I think I play well after I lose a sort of bad match,” the 21-year-old said. “I’m just looking forward to the next tournament. “Before US Open (which she won), I lost those three matches in a row. I was just thinking, like, ‘wow, am I ever going to do anything in my life?’”