'Boys against men': 'Pitiful' Proteas slammed after Aussie mauling

South Africa's T20 squad has limped into Port Elizabeth after a record battering from Australia that reinforced the deep issues facing the proud cricketing nation.

A summer of discontent continued for the Proteas in Johannesburg, where the hosts were skittled for just 89 in a 107-run drubbing at the Wanderers.

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It is both South Africa's heaviest T20 defeat and lowest total in the format, with a hat-trick to Ashton Agar (5-24) adding insult to injury.

The rot started with a sloppy bowling and fielding display which was torn to shreds by local media.

"It took about 90 minutes for a rampant Australia to dump South African cricket back into a dark hole," The Citizen wrote, describing the performance as "pitiful".

Sport24 likened the Proteas to "boys against men", while the Saturday Star lamented the hosts conceding 70 runs in the powerplay.

South Africa's own media crucified the side after its record T20 loss to Australia. Pic: Getty

"It was ill-disciplined and unbecoming of a professional unit who seem better at making excuses ... that actually getting out on the field and doing their jobs properly," columnist Stuart Hess wrote.

The series-opening drubbing is another setback for South Africa, which over the past two years has lost to varying degrees the services of modern greats AB de Villiers, Hashim Amla, Dale Steyn, Morne Morkel and Vernon Philander.

This summer alone, Faf du Plessis stepped down as national men's captain across all formats, Cricket South Africa's major sponsor pulled the plug and its chief executive Thabang Moroe was suspended for alleged misconduct.

The Proteas will head into game two of the three-match series at St George's Park on Sunday night hoping for an improved performance from pace spearhead Kagiso Rabada, who was uncharacteristically poor on return from a rest.

"We've got to get back on the horse," coach Mark Boucher said.

"If we rock up and play 40 per cent cricket we are going to get beaten and beaten badly, like we were today."

Aussie spinner steals show with record spell

Agar snared a special piece of history in a bowling display that powered Australia to the big win in Johannesburg.

David Warner's return to the Bullring lasted just two balls but it mattered little on a night where Agar’s hat-trick steered Australia to a dominant 107-run win in their T20 series-opener.

Ashton Agar's five wickets guided the Aussies to a resounding win. Pic: Getty

Agar's inspired spell - just the second hat-trick by an Australian in a T20 international after Brett Lee in 2007 - put the icing on the cake after the tourists were sent into bat in Johannesburg and posted 6-196 from their 20 overs.

South Africa were bowled out for just 89 in reply with Faf du Plessis (24) delivering the only score of note among the hosts' batsmen.

Agar's figures of 5-24 also represent the best for an Australian bowler in T20 internationals.

The Aussie spinner's masterclass ensured the South Africans finished with their lowest ever T20 score and heaviest defeat.