Mboko came from a set down to oust the 2022 Wimbledon champion in a three-setter that ebbed and flowed to the end.

Osaka has made progress since returning in last year's Australian Open. She won two matches in both the Australian Open and Wimbledon this year, has earned $725,727 in prize money and reached the No. 49 spot in the WTA rankings, with a higher ranking likely on the way by making the final.

The 18-year-old wild card rallied after dropping the first set to the Japanese former world number one, and held firm to cap a remarkable fortnight at home.