NEW YORK, NY - SEPTEMBER 08: Angelique Kerber of Germany celebrates defeating Caroline Wozniacki of Denmark during their Women's Singles Semifinal Match on Day Eleven of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 8, 2016 in the Queens borough of New York City. (Photo by Chris Trotman/Getty Images for USTA)
SYDNEY, AUSTRALIA - JANUARY 15: Karolina Pliskova of Czech Republic celebrates after winning a point in her semi final match against Angelque Kerber of German during day five of the Sydney International at Sydney Olympic Park Tennis Centre on January 15, 2015 in Sydney, Australia. (Photo by Brett Hemmings/Getty Images)
