Lleyton Hewitt will look to help fine tune Nick Kyrgios's grass-court game this season as he pairs with Australia's top men's player for the doubles event at Queen's.
While question marks remain over Kyrgios's participation at the French Open next week, he is scheduled to play both singles and doubles at the key Wimbledon lead-in next month.
Kyrgios was slated to play doubles with American Jack Sock at the Lyon Open on Tuesday, his first match since losing in the quarter-finals of the Houston event more than five weeks ago.
He had returned to Australia for treatment on an elbow injury before heading to Europe.
Hewitt, who officially retired after the 2016 Australian Open, has popped up with a number of his compatriots on the doubles court since giving singles away.
The 37 year-old has paired with the likes of Jordan Thompson, John Peers, Sam Groth and Alex de Minaur.
It will mark only the second time that Hewitt and Kyrgios have played together at a tournament. The other was in Montreal in 2015.
Hewitt has also taken a wildcard entry in the doubles tournament at the Surbiton Trophy earlier in June where he'll team up with another Australian, Alex Bolt.