Anastasija Sevastova is a Latvian professional tennis player, reaching a career-high singles ranking of world No. 11 in 2018. She has won four WTA Tour singles titles, 13 ITF Circuit singles titles, and four ITF Circuit doubles titles. Sevastova is recognized for her achievements at the US Open, making her first major quarterfinal in 2016 by defeating Garbiñe Muguruza and Johanna Konta. In 2018, she reached her first major semifinal, beating Sloane Stephens (who she had previously lost to in 2017), before losing to Serena Williams.