Sabalenka swept out of China Open in straight-sets defeat by Bartunkova

Second seed loses to 34th-ranked player from CzechiaTop seed Elena Rybakina also lost in BeijingAryna Sabalenka was swatted aside in straight sets by Nikola Bartunkova in the third round of the China Open on Sunday, leaving the event without its top two seeds.Bartunkova, the world No 34, sent down four aces to beat the former world No 1 6-4, 6-3 in one hour and 35 minutes. I focused on myself, to be calm, Bartunkova said. Shes a legend so Im really happy that I won the match. Bartunkova, 20, nex...