Dylan Pietsch had learned of his Wallabies' Test rugby debut as early as Tuesday, just two days ahead of the official announcement that has placed the converted winger to be the 15th Indigenous player to represent Australia.

But there is one complication ahead of facing Wales in Sydney on Saturday, with coach Joe Schmidt picking Pietsch not in the run-on side, but to come off the reserves bench.

Nevertheless, Peach is set to live out a dream that has lasted a lot longer than the 12 months he has been in and around recent Wallabies training squads, and even on the cusp of selection for four Tests last year in addition to their 2023 World Cup squad.

After witnessing the 2024 Wallabies camp's squad get trimmed from 38 players to 34, including the axing of Kurtley Beale the night before he ruptured an Achilles tendon after returning to Randwick last Saturday, Pietsch was selected in the final 23 players for the first of two Tests and is now delighted to be finally warming up in the change rooms.

"I don't think this will set in for a while, but it's pretty cool to have this and have the chance to run on," Pietsch said.

That fundamentally indicates should the former schoolboy loose forward that switched onto the left wing in Super Rugby in 2022 not replace a teammate on the field in the 80 minutes, the debut will be harshly scrubbed from the record books.

The celebrations of a possible Test cap #740 in a side that will potentially feature up to seven debutants, including at least two from the starting XV, have been put on hold until the Wiradjuri man finally crosses the line to earn a Test appearance.

"I suppose I still have to get onto the field, but it has been one of those things that has build up from when it happens," Pietsch told National Indigenous Times on Thursday.

"It will more so probably kick in when I see my family afterwards of playing."

It is customary to bring Test debutants onto the field for at least fleetingly in the final minutes.

But the magnitude of the contest between two entirely new lineups since the Welsh beat an out-of-touch Wallabies 40-6 in their World Cup meeting in France could alter the obligatory tradition.

"If it's two seconds or 20 minutes, I don't really care," Pietsch laughed.

"I'm just very excited."

After gaining the confidence of Schmidt since the New Zealander was appointed to inherit the Wallabies coaching position Eddie Jones quit inside 12 months of accepting, Pietsch made calls that he would be donning the Test jersey after calling his family just 11 days earlier after making the squad.

That included calling his pop, his dad, his mum, who is overseas, brother and sister, and the rest of his extended relatives and mates.

"I had to do all the phone rounds again – round two," Pietsch admitted.

"It was really cool to be able to talk to them again just about this.

"They've all been a huge part of the journey so for them to be able to see the reward and the light at the end of the tunnel is always good."

The word from Schmidt has been minimal, but Pietsch is expecting to hear some advice on game day after the fortunes of the 26-year-old's international career have turned around.

"I can probably going to understand what he is going to say: just keep it simple and do what I am good at, which is just running the ball and that, but no, I haven't talked to him fully yet," Pietsch said.

While getting onto the pitch at some time in the Test and focusing on his plans is paramount for Pietsch at the moment, Schmidt has said to forget about a part-time role on the edge of the scrum and breakdown unlike his predecessor.

Jones was adamant last year that Pietsch was a "utility" in his Wallabies squad, and not just a winger, which he solely performs during every single Super Rugby season for NSW Waratahs.

That would have made sense, being given the No. 23 jersey and sitting on the bench to replace a flanker or a No.8, but Schmidt in no uncertain terms told Pietsch to forget any possibility of playing in both the backs or forwards.

"He is pretty adamant on that," Pietsch said.

"He's said just keep it simple and play left wing – we have cover in both centres, so we really don't need coverage too there."

Pietsch is the second-only Wiradjuri man, according to Rugby Australia's online lists besides that of Andrew Walker, to play for the Wallabies.

But the new Test aspirant is close friends with legendary Mark, Glen and Gary Ella, the three Yuin brothers, who once dazzled Australian rugby in the 1980s.

The Ellas have been ecstatic that Pietsch is not only another rare rugby blackfulla, but that he is deep into culture too.

The brothers have also never been short to offer playing advice to Pietsch amid just his third year running out in the backs, but they have let the newest Wallaby to focus on the task at hand of late against Wales at the Sydney Football Stadium.

"I try to leave the Ellas by themselves when I can – if they message me, they message me," he said.

"I dare say though, I will see them at the game."