Sabalenka powers into Roland Garros quarter-finals
The Belarusian battled through a tight opening set against the American 16th seed and then needed eight match points to clinch a 7-5, 6-3 victory on Court Suzanne Lenglen.
Sabalenka, who was the pre-tournament favourite, will face Olympic champion Zheng Qinwen in the last eight after the Chinese star edged past Liudmila Samsonova.
Zheng beat Sabalenka for the first time in their seven meetings in the Italian Open quarter-finals in the build-up to Roland Garros.
Anisimova holds a 5-3 winning record...