Serena plays Kiki Bertens in the second round, knowing that she could face sister Venus in the third round if both progress.
Serena yóò wàákò pẹ̀lú Kiki Bertens nínú ìfigagbága kejì, tí ó sì tún mọ̀ pé, òun yóò tún kojú àbúrò rẹ̀ Venus nípele kẹta.