The Wallabies European tour preparations have been thrown out of whack with skipper George Gregan and playmaker Stephen Larkham unable to train in a week-long camp that began on Monday.

Gregan will miss the Coffs Harbour program due to an immediate family-member's illness while Larkham is sitting out training to nurse a lingering hamstring injury.

The absence of the long-term Australian and Brumbies halves pairing will certainly stunt preparations for next month's four-Test tour of Britain and France.

Coach Eddie Jones had no concerns about Larkham touring, saying he would play if there was a Test match this week, but failed to rule out doubts about Gregan flying out with the 28-man squad on October 30.

"It hasn't been discussed at this stage," he said.

"It's important for George to spend some time at home with his family at the moment.

"He will continue his strength and speed training in Sydney throughout the week."

The Wallabies have called up young Queensland halfback Josh Valentine to cover for Gregan, 31, in the camp that ends on Friday.

Jones denied Gregan and Larkham's absence would badly hinder the team's preparations.

"It's a minor issue but it gives us an opportunity for people to take more responsibility," he said.

Brought to you by AAP © 2024 AAP