GRAND SLAM CHAMPION, CITI OPEN WINNERS & FAN FAVORITES JOIN STACKED D.C. PLAYER FIELD  Victoria Azarenka, Kei Nishikori, Jessica Pegula, Grigor Dimitrov, Alex de Minaur and Eugenie Bouchard join Citi Open’s growing player field  WASHINGTON, D.C. – The world’s best men’s and women’s tennis players will compete in Washington D.C. July 30 - August 7 at the Citi … [Read more...] about Victoria Azarenka, Kei Nishikori, Jessica Pegula, Grigor Dimitrov, Alex de Minaur and Eugenie Bouchard join Citi Open Player Field