But this isn't the type of beer keg you'd expect after Andrew Muirhead scored two tries in his second game for the ACT Brumbies.

Instead, Muirhead was contemplating going back to work delivering kegs when he arrived home this week "to keep me awake" after a dream start to his Brumbies career.

Muirhead has been rewarded for his two tries in 13 minutes by keeping his place on the bench for the Brumbies' clash against the Melbourne Rebels on Saturday night.

The Brumbies arrived in Canberra on Monday night after a perfect two-game tour of South Africa and Argentina, finishing with a 39-15 thumping of the Jaguares in Buenos Aires.

It was a fairytale ride for Muirhead, who doesn't have a full-time professional contract and was plucked from Canberra's club rugby competition to join the touring squad two weeks ago.

Muirhead had to ask his boss at Murrell Distribution for some time off delivering kegs and tyres to chase his rugby ambitions.

He got the perfect reward when she scored two tries against the Jaguares, the second a superb solo effort of twisting and turning his way to the line.

It could be the catalyst to earn a Super Rugby full-time deal and launch his career.

"It hasn't really sunk in yet to be honest with you," Muirhead said.

"Hopefully this leads to something in the future but I don't know yet. We'll wait and see.

"I think I'll have Tuesday morning off, my boss is pretty good. But we work some half days so I might look to do a few hours in the afternoon to keep me awake.

"The boss has looked after me so I'll do right by him as well."

Muirhead was the icing on the cake to the Brumbies' two wins and form turnaround on a massive journey to Port Elizabeth and Buenos Aires.

He was the ninth player to debut for the Brumbies this year and rookie prop Faalelei Sione became the 10th in the clash against the Jaguares.

The rise of unknown players is the silver lining to the Brumbies this year, who have capitalised on opportunities to be on the verge of a fifth consecutive finals appearance.

Fullback Tom Banks is another who has leapt out of obscurity to stamp himself as a Super Rugby player, using his lightning speed to score a double against the Jaguares.

But even after his own try-scoring feats, Banks made special mention of Muirhead's efforts.

"He's such a good bloke and he's worked unbelievably hard coming down from Brisbane to Canberra this year," Banks said.

"To get his opportunity, he's taken it with both hands and I'm really proud of him. He'll do a lot for this team."

The Brumbies will play the Melbourne Rebels at Canberra Stadium on Saturday night and a third consecutive win all but secure a finals spot.

The game will be prop Ben Alexander's 143rd game for the Brumbies, setting a new club record as the most capped player.

Brumbies coach Stephen Larkham kept an unchanged starting XV last week, but he could opt to rotate players after a heavy travel schedule over the past two weeks.

SUPER RUGBY ROUND 15

Saturday: ACT Brumbies v Melbourne Rebels at Canberra Stadium, 7.45pm. Tickets available from Ticketek.

Brumbies team: 15. Tom Banks, 14. Henry Speight, 13. Tevita Kuridrani, 12. Kyle Godwin, 11. Aidan Toua, 10. Wharenui Hawera, 9. Joe Powell, 8. Jordan Smiler, 7. Chris Alcock, 6. Scott Fardy, 5. Sam Carter, 4. Rory Arnold, 3. Allan Alaalatoa, 2. Josh Mann-Rea, 1. Nic Mayhew. Reserves: 16. Robbie Abel, 17. Faalelei Sione, 18. Les Leuluaialii-Makin, 19. Tom Staniforth, 20. Jarrad Butler, 21. De Wet Roos, 22. Andrew Muirhead, 23. Nigel Ah Wong.

Rebels team: 15. Reece Hodge, 14. Sefa Naivalu, 13. Tom English, 12. Mitch Inman, 11. Marika Koroibete, 10. Ben Volavola, 9. Nic Sirzaker, 8. Amanaki Mafi, 7. Colby Faingaa, 6. Hugh Sinclair, 5. Lopeti Timani, 4. Steve Cummins, 3. Tyrel Lomax. 2. James Hanson, 1. Toby Smith. Reserves: 16. Siliva Siliva, 17. Cruze Ah Nau, 18. Laurie Weeks, 19. Culum Retallick, 20. Will Miller, 21. Ben Meehan, 22. Jackson Garden-Bachop, 23. Jonah Placid.