The 25-year-old will debut against India in Perth's first Test from next Friday. McSweeney, the South Australian skipper and former Queensland team-mate of Khawaja's, will be in unfamiliar territory, given he bats at No. 3 for his state. Steven Smith will shift back to his preferred No. 4 after a short-lived audition to replace the retired David Warner last summer.

Warner struck at 70.76 in 143 first-class games, while the more measured McSweeney's strike rate is 41.92 in 34 first-class matches. Khawaja scores slightly quicker than McSweeney but laughed off the suggestion Australia's Test fortunes would be scuppered by a lower scoring rate against the new ball.

"I don't know where this myth started that you need someone to score really fast to do well," Khawaja said on Wednesday. "You've got five days to do it...I don't know why you need to score fast.

"Opening's as much about scoring runs as it is about being able to absorb. Davey was special; he could score runs while absorbing but he didn't do it [score fast] every time. He was consistent; out there and setting a platform, and Nathan does that very well."

McSweeney, once an offspinning No.6, was yet to cement his place at Queensland when he left for Adelaide seeking what he figured would be greater opportunities in 2021. He's flourished since and relished the responsibility of captaincy, Khawaja joking a haircut to remove the "boofy curls" had also helped his cause.

Commentary has centred around McSweeney's task of adapting to the new role at the top of the order. But Khawaja, himself a former No. 3, said he shouldn't overthink it.

"There's no guarantees in cricket...but he doesn't have to do anything different," Khawaja said. "Just repeat the process. He's been able to handle the pressure at Shield level. When you look at his demeanour, the way he plays, you do kind of feel over a longer period of time he'll be able to handle the scrutiny, the pressure of Test cricket."

Khawaja on Wednesday detailed plans to link his Usman Khawaja Foundation annually with the Gabba Test, which will this year be the third in the series from December 14. It's purpose is to assist youth from refugee, immigrant, Indigenous, rural, remote and low-socio economic backgrounds through cricket and educational programs.

"We've got the pink Test in Sydney," Khawaja said of the high-profile McGrath Foundation fundraiser. "We're trying to make the Usman Khawaja Foundation a part of the Gabba Test. I didn't speak English [when arriving in Australia from Pakistan as a child]...cricket broke down the barriers for me.I never felt isolated when I played sport."