Three glaring omissions from Rennie's Wallabies squad

Fraser McReight has been left out of the Wallabies' Spring Tour squad but coach Dave Rennie insists it's all part of a plan to have him threatening captain Michael Hooper's hold on the No.7 jersey.

McReight and Queensland Reds backrow partner Harry Wilson, as well as Brumbies five-eighth Noah Lolesio and hooker Lachlan Lonergan were not named in the 37-man squad on Friday that will play Japan, Scotland, England and Wales.

Instead they'll remain in Australia to get a full preseason at their respective clubs, while enjoying some rare rest after nearly two years of continuous rugby.

A specialist openside flanker, 22-year-old McReight captained Australia's under-20 side to the World Cup final and was named best on ground in last year's Super Rugby AU final.

But he's stuck behind his in-form and indefatigable captain Hooper and unable to earn a spot on the bench for the Wallabies, Rennie admitting carrying both in the same side exposes a "lack of versatility".

Likewise Wilson (22) has fallen behind Rob Valetini and 21-year-old Lolesio is now behind returned veterans Quade Cooper and James O'Connor in the battle for the playmaker role.

Rennie remains massive fans of all of them, including emerging hooker Lonergan, and is confident they'll take their omissions the right way.

"If he can accelerate his game over the next period like he has in the last 12 months he's going to put a lot of pressure on Hoops," Rennie said of McReight.

"There's no guarantees for everyone.

"Everyone wants to tour, and you take Harry, who hasn't played Test match footy in the last month, he's desperate to play at this level.

"But staying home is going to give him an opportunity to make shifts physically in his game to allow him to excel at this level.

"This gives him a plan."

Rennie said Lolesio's goal was to bulk up in the off-season and that 25-year-old second rower Lukhan Salakaia-Loto needed to work on h is leg drive and lower his body height among other th ings after being overlooked for the squad.

Salakaia-Loto has been a regular Wallabies starter b ut left the squad for the birth of his daughter and has now fallen down the pecking order.

Rennie also confirmed that incumbent Wallabies winger Jordan Petaia would play fullback for the Barbarians side he will coach against Samoa in London on November 27.

The coach opted against calling on France-based Kurtley Beale for the Spring Tour, with incumbent No.15 Reece Hodge, winger Andrew Kellaway, O'Connor and Petaia all options to fill the void left by injured Tom Banks.