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Perth: South Africa bowled out for 242 before openers help Australia race away to none for 105 on day 1 at Perth on Thursday.
On 17, Warner survived an lbw shout from Philander, who convinced du Plessis to ask for a review. Indeed, the ball was pitching in line, hitting in line, and the decision would have been overturned - except it was a no-ball.
Eventually, Warner went to stumps unbeaten on 73 with his new opening partner, Shaun Marsh, on 29 and the Australia total had moved on to 0 for 105. It meant their deficit was already eroded to 137.
Earlier, fast bowler Mitchell Starc returned in style as Australia dismissed South Africa for 242.
Returning from a gruesome leg injury suffered in training, Starc struck with the fourth ball of the match and bowled with sustained pace to finish with four wickets as the tourists struggled after winning the toss and electing to bat.
The Australian pace attack, led by Starc (4-71) and Josh Hazlewood (3-70), struck early as the Proteas slumped to 32 for 4.
Middle order batsmen Temba Bavuma (51) and Quinton de Kock, who top-scored with an aggressive 84, rallied with a 71-run stand for the sixth wicket.
But the visitors again stumbled when Bavuma and Vernon Philander fell just before tea as Australia regained control.
De Kock survived two decision reviews and should have been run out on 61, only to be the ninth wicket to fall when he chased quick runs with the tail.
Bavuma made a composed 51 but he fell to a brilliant catch by Shaun Marsh -- whose brother Mitchell had also taken a screamer to dismiss opener Stephen Cook.
The South African number six was superbly caught down low by Shaun Marsh at short leg from the bowling of Nathan Lyon to end a valuable 71-run sixth-wicket stand.
Philander (10) fell to the last ball before tea, dragging an attempted pull shot back onto his stumps to give Starc his third wicket.
Starc, returning to action after suffering deep cuts when he collided with equipment in training, was the pick of the bowlers with 3-42.
South Africa, who beat Australia 5-0 in their recent one-day series, left out paceman Morne Morkel and handed a Test debut to spinner Keshav Maharaj.
Brief scores
South Africa - 242 (De Kock 84, Bavuma 51, Starc 4-71, Hazlewood 3-70)
Australia - 0 for 105 (Warner 73*)
Status - Australia trail by 137 runs
