Alexander "Sascha" Zverev is a German professional tennis player and the current world No. 4. He has been ranked as high as world No. 2 in men's singles by the Association of Tennis Professionals (ATP), achieved in June 2022. Zverev has won 24 ATP Tour–level titles in singles and two in doubles, and has been runner-up at three majors. His most notable achievements include a gold medal at the 2020 Tokyo Olympics and titles at the 2018 and the 2021 ATP Finals.
Zverev is a former junior world No. 1, and won a junior major singles title at the 2014 Australian Open. He had an early breakthrough on the professional tour as well, becoming one of the youngest Challenger Tour title winners in history at the age of 17. As a teenager, Zverev won two ATP titles and upset then–world No. 3 Roger Federer on grass. At 20 years old, he became the youngest player to debut in the top 20 since Novak Djokovic. At the Laver Cup, Zverev has played an instrumental role in Team Europe's early success in the competition, winning the clinching matches in 2018 and 2019.