Novak Djokovic and Simona Halep will each launch their grass-court seasons in Eastbourne next week.
The pair have each accepted wild cards into the Aegon International Eastbourne.
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The fourth-ranked Djokovic, who will be the top seed ahead of second-seeded Gael Monfils, third-seeded John Isner and fourth-seeded Steve Johnson, will make his debut at Devonshire Park.
It will be Djokovic's first grass-court tune-up tournament for Wimbledon since 2010.
"This will be my first trip to Eastbourne, I have heard great things about the tournament,” Djokovic said. "I am looking forward to fine tuning my grass court game there ahead of Wimbledon."
It will be Halep's first tournament since she fell to Jelena Ostapenko in a three-set Roland Garros final.
The second-ranked Halep joins top-ranked Angelique Kerber, Karolina Pliskova, Johanna Konta, Dominika Cibulkova, Garbiñe Muguruza, Svetlana Kuznetsova, Caroline Wozniacki and Agnieszka Radwanska in a loaded Eastbourne women's field.
Photo credit: Roland Garros