semifinals to Sam Querrey. At the Wimbledon Championships, the player fell in second round to Ivo Karlovic. In the North American summer tour, Dolgopolov defeated Karlovich to reach round of 16 at Washington, after which he lost to Alexander Zverev. At the Canada Masters he lost in first round to Grigor Dimitrov. In Cincinnati he qualified for the main draw by defeating James Ward and Santiago Giraldo, then earned a first round bye due to Kei Nishikori's withdrawal and won over Bernard Tomic, Jerzy Janowicz and Tomáš Berdych to reach the semi-finals, where he lost to world nº 1 Novak Djokovic in three sets, having won the first. 2016-2017: Hopman Cup finalist, slump down the rankings, third ATP title, US Open fourth round, top 40 year-end return Dolgopolov represented Ukraine alongside Elina Svitolina at the 2016 Hopman Cup. He won his singles matches against Jack Sock, Jiří Veselý and Lleyton Hewitt. He and Svitolina were the winners of their group in the round robin phase, and went into the final against the Australia Green team. Dolgopolov lost to Nick Kyrgios 3–6, 4–6. The Ukrainian team were the runners-up of the tournament. Dolgopolov then entered 2016 Wimbledon Championships where he beat Russian Evgeny Donskoy in 4 tight sets to set up a second round match against Daniel Evans which he lost in 3 sets. He then entered the 2016 Citi Open and was seed 11, which meant he received a bye for the first round, in the second round match he faced Australian youngster Jordan Thompson, in the third round he lost in straight sets to Sam Querrey. Dolgopolov then proceeded to enter the 2016 Rogers Cup , where he lost to Donald Young in straight sets in the first round. Dolgopolov won his third ATP title at the 2017 Argentina Open defeating top seeded Japanese player Kei Nishikori. He reached the fourth round of the 2017 US Open (tennis) where he was defeated by top seed World No. 1 and eventual champion Rafael Nadal. 2018: Australian Open third round Having got to the third round of the 2018 Australian Open for the third time in his career, Dolgopolov was defeated by Diego Schwartzman. 2021: Retirement Dolgopolov announced his retirement on 1 May 2021, having played Novak Djokovic in his final match on 14 May 2018 at the Internazionali BNL d'Italia in Rome. Military service In March 2022, he returned to