Newport Gwent Dragons player-coach and former Wales captain Colin Charvis has agreed to travel to Tonga for a game to commemorate the coronation of King George Tupou V.
The match, which takes place on July 31, will be contested between a Tongan select XV and a World XV.
The Tonga coronation of King George Tupou V is a showpiece occasion which includes three coronation balls, a military parade, traditional dancing, a fireworks display and an open-air concert, as well as the rugby game.
Charvis - recently appointed as the Dragons contact and defence skills coach - is delighted at the opportunity to take part in the event.
"I'm thrilled that I have been offered the chance to go to Tonga and play a very high standard of game and gauge where I am physically ahead of the season," he said.
"The opportunity has come at a perfect time and I am able to go away and prove my fitness. I would love to continue playing for the region next season as well as fulfilling a coaching role."
England Under-20s suffered a first-ever defeat to their Scottish counterparts on Friday night and head coach Jon Callard admits his young charges will need to put that out of their minds as soon as possible if they harbour hopes of retaining the Under-20s Six Nations title.