Petko beats Wozniacki at own game
KEY BISCAYNE, Fla. -- The frisky, funky, hip-swinging celebration dance has surfaced before, most notably at last year's U.S. Open, where it was seen for the first time.
The Petko Dance, which has its origins in a bet with her coach, happened again after Andrea Petkovic authored a career win over Maria Sharapova in the fourth round of this year's Australian Open. But it had never been executed after a takedown of the world's No. 1-ranked player. Until Monday, that is.