Andrea Petkovic, the No. 10 seed at the U.S. Open and a rising star on the WTA, talks to WSJ.com about her unorthodox journey on the tour, the origins of the "Petko Dance" and more.

Dancing is back in professional women's tennis. Andrea Petkovic's "Petkorazzi" style in days of yore gave life to an art form that has its highs and lows on tennis courts worldwide. (See exhibit A ...

Maria Sharapova re-enters The top 10 for the first time since February 1, 2009 by besting Andrea ... of the dancing that she's been doing—and I took advantage of it," Sharapova said. Petkovic ...