"They are the highest icons of our sport," Roger Federer said of his Big 3 rivals.
Klugman took out American Tyra Grant in the final.
"My cancer is back," Hall of Famer Chrissie Evert announced.
Stephens, a former champion, and Sakkari, a perennial Top-10 talent, join a field that already includes Jessica Pegula, Madison Keys and Ons Jabeur.
The American rises to the top of the list thanks to $16 million in endorsements and another $6.7 million in prize money.
“Launching an OnlyFans was a no-brainer,” Nick Kyrgios said.
Former Wimbledon champion Conchita Martinez is working with 2022 Wimbledon quarterfinalist Marie Bouzková.
