Australia well prepared for wet surface of Optus Stadium - Allan Alaalatoa

Wallabies skipper Allan Alaalatoa insists that his side is well prepared for the wet surface of the Optus Stadium as they lock horns with South Africa for the second round of the Rugby Championship encounter.

With the Bureau of Meteorology forecasting storms and heavy rain—up to 40mm—on Saturday, the Optus Stadium turf, already criticised for being too slick, could be even more challenging.

Having already lost the first game in Brisbane, Australia now will be hoping to turn things around and Alaalatoa is wary of the challenge ahead.

"It's a bit soft underneath," he told reporters on Friday after training at Optus Stadium.

"I think that's probably due to the weather that it's had.

"We've spoken about that as a pack and as a team, just making sure that you have the right essentials with your boots, to make sure that you take every opportunity that counts.

"I don't change anything. I wear the longest studs possible.

"So I think it's more some of our outside backs will probably have to change some of their studs, but everyone's across that."

With Marika Koroibete and Angus Bell returning, Alaalatoa is hoping for an improvement in scrum - where they were outplayed by the Springboks in Brisbane.

"He's [Bell] a big body," Alaalatoa said.

"We all know the talent that he is and the things that he's done in this gold jersey.

"It (the scrum battle) is a great challenge and it was a tough learning for us last weekend.

"We didn't go out there and execute the plan that we wanted, and as a front row we've spoken about that.

"Technically we need to be better."