Dayana Oleksandrivna Yastremska is a Ukrainian professional tennis player. She has been ranked as high as world No. 21 by the WTA, achieved in January 2020. Yastremska has won three WTA Tour titles. Her best performance at the majors is reaching the semifinals at the 2024 Australian Open.
A junior Grand Slam tournament runner-up in both singles and doubles, Yastremska had a quick breakthrough onto the WTA Tour. She made her debut in the top 100 and won two titles when she was 18 years old, including her first at the Hong Kong Open in 2018.
She had a successful 2019 that helped her rise from No. 58 at the start of the year up to No. 22 by the end of the season. Yastremska was suspended provisionally from competition at the start of 2021 after testing positive for mesterolone. On 22 June 2021, the International Tennis Federation ruled that Yastremska was not responsible for the positive result, and that she was eligible to return to competition immediately. She made her return to the tour at the Hamburg Open.
