Rising Reds playmaker Hamish Stewart won't be part of the Junior Wallabies' World Championship squad, named on Tuesday morning.
Stewart has been a regular in the Reds' matchday 23 this season and the Reds and Rugby Australia have opted to keep him in Super Rugby during the tournament.
The 20-year-old was part of the team in 2017, before making his Super Rugby debut late in the season.
Though he won't be part of the squad, there are a handful of players with Super Rugby experience in the 28-man squad, incuding fellow Reds Harry Hockings, Harry Hoopert and Jordan Petaia.
Fellow Queenslander Lawson Creighton was the first-choice 10 in the recent Oceania U20s Championship, with NSW's Bayley Kuenzle another option in the playmaking spot.
Australia has had a disappointing recent history at the World Championships, and will have a tough pool in France this year as well, playing against New Zealand, Wales and Japan in their preliminary stages.
Junior Wallabies coach Jason Gilmore said the team had taken plenty out of the recent Oceania competition, where they lost to New Zealand in the title decider.
"We took a lot of learnings out of the match against New Zealand and we will be implementing those improvements in our next camp ahead of our departure," he said.
“We have a tough Pool with Wales, Japan and New Zealand who all offer three different styles of Rugby and we will need to be ready for the three challenges.
“The hard work steps up now for this squad after Oceania and the players and staff are looking forward to getting back into camp.”
The Junior Wallabies will convene at a camp in Canberra on May 17, before heading over to France for the World Championships, which kick off on Thursday May 31.
Junior Wallabies squad for World U20s Championships
Angus Blyth, Bond University
Matt Faessler, Brothers
George Francis, Eastwood
Esei Ha'angana, Melbourne Unicorns
Harry Hockings, University of Queensland
Josh Kemeny, Sydney University
Harry Hoopert, Brothers
Trevor Hosea, Harlequins
Efi Ma’afu, Wests
Sama Malolo, Endeavour Hills
Fraser McReight, Brothers
Josh Nasser, University of Queensland
Tom Ross, Gungahlin
Rory Suttor, Sydney University
Patrick Tafa, Norths (Sydney),
Rob Valetini, Wests
Lawson Creighton, Brothers
Mack Hansen, Gungahlin
Tony Hunt, Norths (Brisbane)
Len Ikitau, Vikings
Bayley Kuenzle, Southern Districts
Isiah Latu, Queanbeyan
Ryan Lonergan, Vikings
Isaac Lucas, Sunnybank
Tate McDermott, University of Queensland
Matt McTaggert, Easts
Jordan Petaia, Wests
Semisi Tupou, Box Hill
World Rugby U20s Championship
All times AEST
Thursday May 31
5am - Australia vs Wales
Sunday June 3
10pm - Australia vs Japan
Friday June 8
5am - Australia v New Zealand, 5am