View Profile (2019) take the total of former winners to five. Swiatek set a historic record last year when the Pole dropped just five games en route to defending her title.
View Profile and Sloane Stephens round out the cohort of major champions. Former World No.1 Osaka is the last direct acceptance to the main draw, using her special ranking of No.46 as she continues her return from maternity leave; she will make her second career appearance in Doha following 2018, when she made the second round.
The Top 46 players in the WTA rankings as of 15 January have all entered the tournament, with three exceptions: Madison Keys
View Profile , a two-time quarterfinalist in Doha, will bid to put a second-round loss at the Australian Open behind her as she returns to a tournament where she has enjoyed de facto home-court support in the past. Roland Garros finalist Karolina Muchova
View Profile will make her return from a wrist injury that has sidelined her since the US Open, where she made the semifinals.
The event will be the 22nd edition of the tournament, which was first held in 2001. Former champions include Martina Hingis, Justine Henin, Anastasia Myskina, Monica Seles and Maria Sharapova.