INDIAN WELLS, CA, USA – Simona Halep faces a daunting challenge if she is to become the second player to successfully defend her crown at the BNP Paribas Open.

In the event’s 27-year history, only the great Martina Navratilova has won back-to-back titles. Halep’s hopes of following in these legendary footsteps were done no favors during Monday afternoon’s draw, which placed her in a treacherous top quarter.

All 32 seeds receive a first-round bye and Halep’s opening match will be against either Vania King or a qualifier.The mercurial Ekaterina Makarova, who famously upset Halep at the 2015  Australian Open, is seeded to be her third-round opponent.

Should she pass these early tests, then in all likelihood the Romanian will have to run the Williams gauntlet; Venus Williams is Halep’s projected fourth round foe, with top seed Serena Williams likely to be lying in wait in the quarterfinals. Only seven players have succeeded in beating both sisters at the same tournament, Jelena Jankovic being the most recent, at Rome in 2010. 

Twelve months ago, Serena made her much-publicized return to the Indian Wells Tennis Garden and her move prompted Venus to follow suit. Agnieszka Radwanska and Petra Kvitova are also in the top half, both of whom will be wise not to look too far ahead.

In a section that includes Svetlana Kuznetsova, Monica Niculescu, Heather Watson and last year’s runner-up, Jelena Jankovic, No.3 seed Radwanska’s most pressing concern will be the possible second-round banana skin against Dominika Cibulkova.

Keeping Kvitova company are Fed Cup teammate Lucie Safarova and fellow big-hitters Madison Keys and Sabine Lisicki. 

No.2 seed Angelique Kerber finds herself in the less threatening bottom half, although her recent Doha hiccup will surely safeguard against complacency.

Barring upsets, Kerber and Carla Suárez Navarro are set to lock horns in the last eight, while two of the WTA’s new kids on the block, Garbiñe Muguruza and Belinda Bencic, are the leading seeds in the other quarter.

Click here to see the full draw.