Andy Murray will play at The Boodles tournament next week as part of his preparations for Wimbledon.
The British number one, who made an early exit at Queen's, will play at the Buckinghamshire exhibition event on 21 and 22 June.
Novak Djokovic has also been confirmed for the tournament in Stoke Park, which takes place from 19-23 June.
The world number one played at The Boodles last year before going on win Wimbledon less than two weeks later.
"I enjoy playing at Stoke Park and look forward to preparing the defence of my Wimbledon title at The Boodles," said Djokovic.
Former US Open champion Juan Martin Del Potro, world number eight Janko Tipsarevic, John Isner, Marin Cilic, Stanislas Wawrinka, Alexandr Dolgoplov and Gilles Simon are the other top players confirmed to play at The Boodles.