Sofia Anna "Sonya" Kenin is an American professional tennis player. She has a career-high ranking by the WTA of No. 4 in the world, which she achieved on March 9, 2020. She was the 2020 WTA Player of the Year, an award she earned by winning the 2020 Australian Open and finishing runner-up at the 2020 French Open. Kenin has won another four singles and four doubles titles on the WTA Tour, including the 2019 China Open and 2024 Miami Open at the WTA 1000-level with Bethanie Mattek-Sands.

The WTA 1000 tournaments are a category of tennis tournaments on the WTA Tour, governed by the Women's Tennis Association. The old WTA Premier Mandatory and 5 tournaments merged into a single highest tier implemented in the 2021 schedule reorganization. Until 2024, only four of the nine WTA 1000 tournaments were mandatory, when the category expanded to ten mandatory tournaments.