1 Belinda Bencic2 Simona Halep3 Elina Svitolina4 Maria Sharapova5 Dominika Cibulkova6 Kristina Mladenovic and Dominic Thiem-Davis Cup Semifinals (Sep. 14-16): **USA takes on Croatia, while Spain faces France -Additionally, watch Davis Cup World Group Playoffs featuring Austria vs. Australia and Canada vs. Netherlands