Simona Halep of Romania returns a shot to Petra Martic of Croatia during the BNP Paribas Open at the Indian Wells Tennis Garden on March 14, 2018 in Indian Wells, California. Pic/Getty Images/AFP

Naomi Osaka and Daria Kasatkina will go head to head for the Paribas Open title after stunning Simona Halep and Venus Williams respectively in the semi-finals here on Friday.