Struff advanced to his first semifinals on the ATP Tour in Marseille, Munich and Metz. He entered the top 100 in the ATP rankings for the first time in his career. Struff made his Davis Cup debut for Germany against France in the first round. He lost the first rubber to Gilles Simon with 8–10 in the fifth set, and his team lost the tie with 2–3.
Daniil Sergeyevich Medvedev (Russian: Дании́л Серге́евич Медве́дев, pronounced ; 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. He has won seven ATP singles titles, including two 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.