The first in a series of advertisements for "Strong is Beautiful" - WTA's new global ad campaign - this :30 second commercial focuses on all of the characteristics necessary to become a successful professional tennis player. World No.1 Caroline Wozniacki described the video this way: "It takes so many elements to reach the top of such a competitive sport as tennis - strength of character, discipline, and will power. All of these things define who we are as people and as athletes. For me the new campaign is able to capture the inner strength of players in a beautiful way." Shot by famed Los Angeles photographer and filmmaker Dewey Nicks, the stunning imagery portrays the players in a unique way with an ultimate focus on their inner strength. Featured players: Sam Stosur, Ana Ivanovic, Li Na, Caroline Wozniacki, Vera Zvonareva, Serena Williams, Victoria Azarenka & Kim Clijsters.