Kei Nishikori is making his fifth appearance at the Citi Open.
Hyeon Chung notched his first ATP World Tour 500 Event win on Monday
Mardy Fish and Grigor Dimitrov save two match points to win their first-round match in Washington.
Isner meets an Aldabra Tortoise at the Smithsonian National Zoo
Andy Murray is making his second appearance in Washington, D.C.
John Isner feeds a large tortoise during a zoo visit in Washington, D.C. on Monday.
John Isner visits the Smithsonian National Zoo in Washington, D.C.
Bruno Soares stops by the Marriott Marquis for the 2015 Citi Open player party.
Vasek Pospisil was in attendance Sunday Night at the player party in Washington, D.C.
Alexander Peya poses with Emirates Airline stewardesses at the 2015 Citi Open player party.
Marcelo Melo, seeded second in doubles with Ivan Dodig, attends the Citi Open player party Sunday night.
Marinko Matosevic attends the Citi Open player party.
Kevin Anderson attends the Citi Open player party Sunday night.
Andy Murray and his team prepare for a private tour of the White House.
Sam Groth helps at a kids' clinic in Washington, D.C.
Join in on the fun as Bruno Soares and Alexander Peya interview fellow ATP World Tour players ahead of the Citi Open.
Marin Cilic talks about his chances at the 2015 Citi Open.
Andy Murray talks about returning to the Citi Open for the first time since 2006.
Andy Murray visits the White House with coach Jonas Bjorkman.
Tim Smyczek attends the USTA clinic in Washington, D.C. on Sunday.
Alexandr Dolgopolov attends a meet-and-greet and autograph signing in Washington on Saturday.
Alejandro Gonzalez and his family join Colombian Ambassador in Washington D.C. Juan Carlos Pinzon for dinner at the Colombian Embassy.
Citi Open top seed Andy Murray with British Ambassador Sir Peter Westmacott at the draw ceremony.
Andy Murray was on hand for the Citi Open draw ceremony on Friday.
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