Karolina Pliskova and Johanna Konta were victorious at the Birmingham Classic, but Elina Svitolina suffered a first-round exit.
Naomi Osaka will retain her place at the top of the rankings after Karolina Pliskova went down to Petra Martic on Friday.
With Karolina Pliskova, Kiki Bertens, Petra Kvitova and Angelique Kerber out of the French Open, Naomi Osaka will remain world number one.
Petra Martic claimed the biggest win of her career by beating world number two Karolina Pliskova at the French Open.
Sloane Stephens is enjoying a new lease of life with Sven Groeneveld, while Garbine Muguruza will face Elina Svitolina at Roland Garros.
Angelique Kerber did not use a recent injury setback as an excuse for her first-round exit at the hands of Anastasia Potapova in Paris.
Rafael Nadal is the 'King of Clay' and Karolina Pliskova described French Open rival Simona Halep as the closest to his WTA equivalent.
Three Omnisport writers pick their tips for success at the French Open and take a look at potential dark horses.
Johanna Konta has impressed on clay this season but was unable to stop Karolina Pliskova triumphing at the Internazionali d'Italia.
Johanna Konta earned an upset win and Karolina Pliskova avenged some Rome demons at the Internazionali d'Italia.