NAOMI OSAKA said she did not want to have regrets after winning her first match under the guidance of new coach Patrick Mouratoglou.

The four-time grand slam champion split from long-term coach Wim Fissette earlier this month and immediately turned to Frenchman Mouratoglou, who is best known for being in Serena Williams’s corner for the last 10 years of her career.

Osaka returned to the tour at the start of the season following the birth of daughter last year but has been frustrated by her progress, with her ranking currently down at 73.