Aussies thrashed by Proteas in 2nd ODI

Australia have slumped to a 142-run defeat in the second one-day international against South Africa, completing a miserable sporting weekend for Australian teams in Johannesburg.

The Proteas hold a 2-0 lead in the five-match series after backing up their six-wicket win on Friday at Centurion with an even more dominant display at the Wanderers on Sunday.

Proteas captain Faf du Plessis top-scored with 111 as Australia's understrength bowling lineup was again put to the sword.

Combining with JP Duminy (82) in a 150-run third-wicket stand, South Africa surged to an imposing 6-361 off their 50 overs.

In reply, David Warner (50) and Travis Head (51) both made half-centuries, but Australia were never realistically in the hunt for the target as they were dismissed for 219 with 12 overs to spare.

It caps a miserable sporting weekend for Australia in South Africa, with the Springboks also beating the Wallabies in Saturday's rugby union Test at Loftus Versfeld.

"We have to get hungry and we have to be hungry," Warner said.

"We are that on our day. Obviously it hasn't been our day the last couple of games but we've got to keep having that positive mindset and go big."

Australia handed debuts to fast bowlers Joe Mennie and Chris Tremain, who came into the team in place of Scott Boland and Daniel Worrall.

Mennie endured a tough day, posting the worst figures by an Australian bowler on debut: 0-82 off his 10 overs.

Tremain fared little better, but did pick up his maiden ODI wicket as he claimed 1-78 from his 10.

"They're gonna have to learn fast," Warner said.

"We've only got a day or so off and then we've got to come back at Durban.

"You look at that wicket, it had a nice coverage of grass and offered a bit with the new ball so they're going to have reflect a bit on today and think fast on their feet come the first 10 (overs) next game."

South Africa's victory came without veteran batsman Hashim Amla, who was overlooked by selectors despite recovering from the virus which ruled him out of game one.

The Proteas hardly needed Amla's expertise however, with Rilee Roussow (75) also adding valuable runs at the top of the order before du Plessis and Duminy took the game away from Australia.

South African quicks Kagiso Rabada (2-31) and Wayne Parnell (3-40) then made it look like Australia were batting on a different pitch as they denied the tourists any chance of mounting a successful run chase.

The defeat is South Africa's second-largest win over Australia by runs and also Australia's fifth-heaviest defeat in their ODI history.

"That was a complete game," du Plessis said.

"A great disciplined batting performance and as good a performance I think you'll see from us. To beat Australia, which is a fantastic one-day team, to beat them like that means we've competed in every aspect of the game."

The series now heads to Durban for the third ODI on Wednesday, which Australia must win to keep the series alive.