This victory brought him 38 positions up on ATP ladder to the position of 54 prior to the Australian Open. At Australian Open, he made it to third round before being eliminated by world No. 7, Tomas Berdych in straight sets. In March, Troicki defeated young Croatian prodigy Borna Ćorić in five epic sets in round one of Davis Cup; Serbia would go on to win & progress to the quarterfinals. After defeating Marin Čilić on 14 June, Troicki played in the finals of Stuttgart Mercedes Cup versus Rafael Nadal. Troicki played very well but Nadal won in straight sets, 7–6, 6–3. His US Open campaign opened with a straight sets victory over Frances Tiafoe and a 3–1 win over Rajeev Ram.