Two-time major champion Li Na announced her retirement from the WTA last week.
Top-50 WTA player Zhang Shuai may be the best hope to succeed Li Na and Zheng Jie among the top Asian women after upsetting Petra Kvitova in Rome.
Former Wimbledon champion Petra Kvitova has broken records for three-set tennis matches, adding two more in Madrid.
Swiss talent Timea Bacsinszky scored her first WTA main-draw win in two years and reached her first WTA quarterfinal since 2010 at the Portugal Open in Oeiras,
Former top-20 woman Alisa Kleybanova upset Petra Kvitova in Stuttgart as her comeback from Hodgkin’s lymphoma progresses.
An upset over Sloane Stephens showed how comfortable Mariana Duque-Marino feels at her home WTA tournament in Bogota.
The 20-year-old Slovak played more confidently than she talked in toppling world No. 1 Serena Williams at the Family Circle Cup in Charleston.
Since returning from a foot injury this year, Muguruza has won her first title and continued her upward progress.
While 20-year-old Annika Beck broke through on the Persian Gulf, Francesca Schiavone dueled with Lourdes Dominguez for the third different decade.