Alexander Zverev wins his first ATP World Tour 500-level title on Sunday at the Citi Open in Washington, D.C.
Henri Kontinen and John Peers claim their second title of the year in Washington, D.C.
Alexander Zverev beats Kei Nishikori at the Citi Open on Saturday to improve to 5-5 against the Top 10 this season.
Alexander Zverev will try to improve to 3-0 against Kevin Anderson in their FedEx ATP Head2Head series when they meet on Sunday during the Citi Open final.
John Peers, left, and Henri Kontinen advance to the Citi Open doubles final on Saturday in Washington, D.C.
Kevin Anderson reaches his first ATP World Tour final of the season on Saturday at the Citi Open in Washington, D.C.
Before this week, Kevin Anderson had never reached past the quarter-finals during his prior six appearances at the Citi Open.
Kei Nishikori completes another late-night win to reach the semi-finals at the Citi Open.
Jamie Murray (L) and Bruno Soares completed a miraculous comeback to reach the Citi Open semi-finals.
Jack Sock's forehand reached speeds approaching 120 mph Friday at the Citi Open.
Kei Nishikori prevails in another late match at the Citi Open.
Tommy Paul turns the tables on Gilles Muller at the Citi Open.
Dominic Thiem and Kevin Anderson put on an epic third-round battle at the Citi Open.
Milos Raonic has saved set points in both of his matches this week at the Citi Open.
#NextGenATP Alexander Zverev's improved return game has helped him climb the Emirates ATP Rankings during the past three seasons.
Alexander Zverev reaches the third round of the Citi Open in dramatic fashion.
Alexander Zverev will look to win his first Citi Open title this week in Washington, DC.
Milos Raonic successfully begins his quest for a second title at the Citi Open.
Dominic Thiem drops just one point on serve on his way past Henri Laaksonen in Washington, D.C.
Fifteenth seed Kevin Anderson will face either Tunisia's Malek Jaziri or Italy's Alessandro Bega in the Citi Open second round.
Gael Monfils will look to repeat as Citi Open champion this week in Washington.
Gael Monfils makes time for a photo with fan Tunikqua King on Tuesday at the Citi Open.
Jared Donaldson celebrates winning his first-round match in Washington for the second straight year after his victory over Dudi Sela.
Juan Martin del Potro will try to win his fourth Citi Open title this week.
NextGen star Jared Donaldson signed autographs and took pictures with some lucky fans on Sunday in Washington D.C.
Juan Carlos Ferrero and Alexander Zverev work together for the first time at the Citi Open.
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