London Broncos have announced their Challenge Cup match against Keighley Cougars and future Behind Closed Doors matches will take place at Rosslyn Park.
The Broncos are currently using the home of the National League 1 side as a training base, and will now use their ground instead of Ealing Trailfinders.
Talks are also ongoing over a potential ground share with League One side AFC Wimbledon, at their new Plough Lane stadium.
An update over talks is expected in the coming days.
Reacting to the news, Head Coach Danny Ward said: “It can only be a positive for us to be able to play there. It is our training pitch and our first team base, so to be able to play on this surface could be a big advantage for us.”