Four-time major champion NAOMI OSAKA has said that she didn’t want to have regrets, after confirming she has teamed up with SERENA WILLIAMS’ renowned former coach PATRICK MOURATOGLOU.

Former world number one OSAKA, now ranked 73, defeated LUCIA BRONZETTI of Italy 6-3, 6-2 in the first round of the WTA 1000 China Open with the Frenchman MOURATOGLOU in her players’ box.

The 26-year-old OSAKA split from Belgian coach WIM FISSETTE this month, as she attempts to return to the form that propelled her to the top of the women’s game.

Japan’s OSAKA said she felt like she needed a change and described MOURATOGLOU, who is best known as WILLIAMS’ long-time former coach, as a big persona.