On Monday , Williams will face off against Alize Cornet , while Keys will take on the tough Kristina Mladenovic .
On top of that , Venus Williams lost her opening singles match , leaving Serena and Madison Keys as the top - ranked American women remaining .
On Monday , Serena will face off against Alize Cornet , while Keys will take on the tough Kristina Mladenovic .
On top of that , Venus Williams lost her opening singles match , leaving Serena and Madison Keys as the top - ranked American women remaining .