But the Brumbies flyer's hopes of forcing his way back into the Wallabies squad hit a major hurdle when he was ruled out for up to four weeks after injuring his ankle in the last game of the Super Rugby season.

The Wallabies copped a double injury blow on Thursday, with Speight to miss a month and Tevita Kuridrani out of action for up to 12 weeks after tearing his pectoral muscle in the game against the NSW Waratahs.

Kuridrani, who was set to reclaim the gold No. 13 jersey but will have surgery next week instead, will miss the entire Rugby Championship campaign and his hopes of playing on the spring tour of Europe are also in jeopardy.

Speight still has a glimmer of hope of earning a Wallabies recall after his impressive end to the Brumbies campaign, but he has also emerged as a target for European clubs looking for a star.

Speight, who has a contract to play for the Brumbies next year, has been linked to a temporary move to Irish club Ulster before returning to Canberra for the Super Rugby pre-season.

But it is believed mega-rich Toulon have also been impressed with the Brumbies cult hero and have expressed an interest in securing a loan deal for the end of the year.

His availability could hinge on the Wallabies and whether Test coach Michael Cheika views the 30-year-old as a starting winger for the Rugby Championship or spring tour.

Kuridrani's hopes, however, hinge on how he recovers from surgery after a disastrous end to his Super Rugby form revival.

Kuridrani bounced back to his best in the last five games of the Brumbies season, dropping three kilograms and playing with renewed determination.

He was viewed as a certainty to reclaim the Wallabies' outside centre role for the Rugby Championship after Samu Kerevi's season was ruined by a ruptured bicep.

But Kuridrani will be out of action until late October, but could be added to the spring tour squad as the Wallabies scramble to find someone new to fill the No. 13.

"I was really stoked with the way we finished, everyone got the combination right at the end. It was just unlucky we did it at the end of the season ... we peaked at the wrong time," Kuridrani said.

"I was just trying get into the new game plan [at the Brumbies], so I started to understand it more and as long as I can get my hands on the ball, it will help the team.

"I hadn't focused on Wallabies at all. I just wanted to improve my rugby and play really well, hopefully that would help take me somewhere."

Some of the Brumbies returned to training on Thursday as part of a pre-Wallabies camp program. Fullback Tom Banks is pushing for his Test debut after an impressive end to the year, while David Pocock also showed he was back to his best.

Props Scott Sio and Allan Alaalatoa, hooker Folau Faingaa, lock Rory Arnold and scrumhalf Joe Powell are also back in training to be fit for the start of the Wallabies season.

The Brumbies have also farewelled a host of players, with Isi Naisrani confirming his move to the Melbourne Rebels on Thursday morning.

Kyle Godwin has signed to play with Connacht in Ireland, Andrew Smith has retired, Richie Arnold will play in Japan and Robbie Abel, Nic Mayhew, James Dargaville and Faalelei Sione are also leaving the Canberra club.