Naomi Osaka claims she forgot to congratulate Victoria Mboko during her blunt loser’s speech at the Canadian Open. The Japanese star spoke for a mere 18 seconds after she suffered a disappointing defeat to the 18-year-old in the final.

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.

Naomi Osaka reacts to playing Victoria Mboko in the final of the National Bank Open after Mboko called Osaka her "idol" years back.