Naomi Osaka says she is at a stage in life where she "does not want to have regrets", after hiring Patrick Mouratoglou as her new coach.
Japan's Osaka beat Italy's Lucia Bronzetti 6-3 6-2 at the China Open in her first match with Mouratoglou - formally the long-time coach of Serena Williams - in her corner.
The 26-year-old split with Wim Fisette, who she won two of her four Grand Slam titles with, earlier in September.
Osaka said she was initially hesitant about working with Mouratoglou.
"The fact that he was Serena's coach made me want to avoid him just because his persona is so big," she said.