The Russian player stuns the No.10 seed in straight sets, while Katerina Siniakova survives a thriller in Paris.
Gauff downs Anisimova in straight sets to enter the semifinals of the Emilia-Romagna Open and will next play Katerina Siniakova.
Siniakova downs top seed Serena Williams in the second round of the Emilia-Romagna Open, while Petra Martic and Coco Gauff win their openers.