Aryna Sabalenka swept out of China Open in straight-sets defeat by Nikola Bartunkova
Second seed loses to 34th-ranked player from Czechia

TL;DR
- Aryna Sabalenka lost to Nikola Bartunkova in the third round of the China Open.
- Bartunkova, ranked 34th, won in straight sets: 6-4, 6-3.
- Sabalenka was the second seed, and top seed Elena Rybakina was eliminated earlier.
- Bartunkova will play Sinja Kraus in the round of 16.