Aryna Sabalenka said she was in a "dark hole" mentally and wanted to quit tennis after an upset loss Wednesday in a French Open quarterfinal.

World No. 1 Aryna Sabalenka Authors Stunning Collapse At French Open

Top-ranked Aryna Sabalenka wasted a lead of a set and two breaks to lose 3-6, 7-5, 6-0 lto Diana Shnaider in the French Open quarterfinals.

The world number one capitulated in windy conditions to lose 3-6 7-5 6-0.