Dominic Thiem is an Austrian professional tennis player. He has been ranked as high as world No. 3 in singles by the Association of Tennis Professionals, which he first achieved in March 2020. Thiem has won 17 ATP Tour singles titles, including a Grand Slam title at the 2020 US Open where he came back from two sets down to defeat Alexander Zverev in the final. With the win, Thiem became the first male player born in the 1990s to claim a Major singles title, as well as the first Austrian to win the US Open singles title. He had previously reached three other Major finals, finishing runner-up at the 2018 and 2019 French Open to Rafael Nadal, and at the 2020 Australian Open to Novak Djokovic. Thiem was also runner-up at the 2019 and 2020 ATP Finals, where he lost to Stefanos Tsitsipas and Daniil Medvedev, respectively.

Alexander Zverev is a German professional tennis player. He has been ranked by the ATP as high as world No. 2. Zverev's singles career highlights include a gold medal at the 2020 Tokyo Olympics, and titles at the 2018 and the 2021 ATP Finals. He has won 21 ATP Tour titles in singles and two in doubles, and contested a major final at the 2020 US Open.