Facing off against Yoshihito Nishioka in the singles final, Kyrgios sealed his first title of the year with a 6-4, 6-3 straight-sets win. Partnering with American Jack Sock in the doubles final hours later, the former World No. 13 turned victor once again, with the unseeded pair beating fourth seeds Ivan Dodig and Austin Krajicek 7-5, 6-4.
In doing so, the World No. 37 became the first player ever to complete the singles-doubles sweep in the Citi Open's history. An ecstatic Kyrgios later took to Instagram to share some of his favorite images from the past week, proud of himself for the way he pulled through.
Among the many fans and fellow players who dropped in to congratulate the 27-year-old was 21-time Grand Slam champion Djokovic. Praising his colleague for his brilliant run in Washington, the Serb went on to suggest that if he could only add some Capoeira training to his regimen, he could very easily become a Grand Slam winner.
"Congrats man! What a week! Just add Capoeira training to your regimen and you will get a Grand Slam!" Djokovic wrote on Instagram.
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For those unaware, the 35-year-old's remark is an inside-joke between the two, from when Kyrgios recently commented on a video of the former World No. 1 performing the Afro-Brazilian martial arts form. Looking at how intense it was, the World No. 37 had joked that if that was what one had to undergo to win a Grand Slam title, he was never going to win one.
Fresh off his victory at the Citi Open, Nick Kyrgios will now move on to the National Bank Open (Rogers Cup) in Montreal, while Djokovic has been prevented from entering North America due to vaccine mandates in Canada and the United States