Maria Sakkari, the 24-year-old left-hander from Greece, qualified for her first season-ending WTA Finals on Tuesday by beating Agnieszka Radwanska 6-3, 6-3 to win the Kremlin Cup in Moscow.
The victory was all the more remarkable given that Sakkari had been stricken with tonsillitis since winning her opening match in Moscow.
With her full voice in a singing voice reminiscent of Rihanna, Sakkari was the dominant figure on court against Radwanska.
She whipped away her first two service games to love, winning the opening set in 33 minutes and wasting no opportunity to press the advantage.
Sakkari broke Radwanska again in the third game of the second set to claim the opening set and then sealed the match when her opponent double-faulted on the first match point.
Sakkari becomes the seventh qualifier for Singapore, joining the like of the Czech Petra Kvitova, Angelique Kerber, Sloane Stephens, Elina Svitolina, Karolina Pliskova and Garbine Muguruza.
The WTA Finals will be held at the Singapore Indoor Stadium from Oct. 27-Nov. 5.