World number two Iga Swiatek beat Wimbledon champion Marketa Vondrousova 7-6 6-0 in her opening match at the WTA Finals in Cancun, before joining the chorus of criticism of the court.
The indomitable Iga Swiatek defeated Liudmila Samsonova in the final of the China Open on Sunday.
Iga Swiatek brought an end to Coco Gauff's 16-game winning streak to set up a clash with unseeded Liudmila Samsonova in the China Open final.
Iga Swiatek was dumped out of the Toray Pan Pacific Open in the quarter-finals by Russian Veronika Kudermetova.
After being bundled out of the US Open, Iga Swiatek has already come to terms with no longer being world number one when the tournament ends.
Iga Swiatek's reign as world number one and US Open champion was brought to an end by a spirited Jelena Ostapenko at Flushing Meadows on Sunday.