Daniil Sergeyevich Medvedev (Russian: Дании́л Серге́евич Медве́дев, pronounced [dənʲɪˈiɫ mʲɪdˈvʲedʲɪf]; born 11 February 1996) is a Russian professional tennis player. Medvedev has a career-high ATP singles ranking of world No. 4, achieved on 9 September 2019, and No. 170 in doubles achieved in August 2019. He has won nine ATP singles titles, including the 2020 ATP Finals and three Masters 1000 titles. Medvedev achieved a breakthrough in 2019, when he reached six consecutive tournament finals, including one at the 2019 US Open and three at Masters 1000 events.