Nadal won the title at Wimbledon last year, but he lost in the fourth round of French Open this month. He pulled out of the Queen's Club tournament last week to rest his injured knees.
"I have kindly been invited to play the traditional exhibition at the Hurlingham Club,'' Nadal said in a statement on his Web site. "I have played at that club for several years now.
"It would be a good test for me to play there on Friday to see how the knee is doing and it would provide the perfect setting to get some practice before Wimbledon.''
Nadal played at the event in 2006 and '07.
MLS Original Marsch honored by Chivas
Nadal returns to defend Queen’s Club title
Nadal returns to defend Queen’s Club title
