After a redemptive day of Test cricket, Australia have the upper hand.

Despite losing late wickets and ending the day at 6/307, Australia sit firmly in front of South Africa with a 48-run lead and Usman Khawaja still at the crease on 138.

Here were all the main talking points from day two.

RABADA'S BRUTAL SEND-OFF

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Nic Maddinson joined the realm of Test cricket in some of the worst batting conditions imaginable. It was cold, there was a new ball and a fired-up young gun was spearing a pink ball in at over 140km/h under lights. Maddinson survived the early onslaught with stoic defence, but nothing could stop a perfectly-executed yorker delivered by Kagiso Rabada.

Rabada's delivery skittled Maddinson and took his middle stump clearly out of the ground, and boy did he want the debutant to hear about it.

The 21-year-old began an expletive-ridden send-off as Maddinson gathered himself and departed the pitch. Rabada obviously knew he'd gone too far, attempting to cover his mouth with his hand as cameras zoomed in.

To top it all off, Maddinson failed to trouble the scorers in his first ever Test innings in Australia, departing the field for a duck.

GILLY'S HUGE PRAISE FOR ABBOTT

Adam Gilchrist is widely known as one of the most destructive batsmen to play the game - but there's not much he could do to combat the great Andrew Flintoff. The former Aussie wicketkeeper-batsman had the highest of praise for South Africa's Kyle Abbott after his devastating spell early in the day which claimed the wickets of Matt Renshaw and David Warner. Gilchrist posted on Twitter saying the 29-year-old looked to be channelling Flintoff with his seam and swing movement towards the left handers.

Abbott fired for South Africa for the entire three sessions to end day two with figures of 3-37 from 25 overs.


WARNER'S DISAPPOINTING STATISTIC

When asked who is the best opening batsman in the game, many fans will point to David Warner. However, a recent dip in form has seen the 30-year-old hit a low point in his career with his average for Test matches in 2016 dipping well below what is expected of a top order player. Since the year commenced, Warner has scored 513 runs at an average of 36. While the statistic isn't as lacklustre as Mitchell Marsh's - who averaged 23 at number six throughout his 19 Tests - the Aussie vice-captain will surely be disappointed in his year with the bat.

Warner fell early in the day on 11, skewing a ball to Dean Elgar at slip off the superb seam bowling of Kyle Abbott.

SMITH AND KHAWAJA'S COLOSSAL BLUNDER

It was all looking sublime until this slip-up came about.Steve Smith had his innings ended on 59 after taking off for a risky run after poking a ball square on the off side off the bowling of Tabraiz Shamsi. Usman Khawaja was not convinced it was a safe run and stood his ground as his skipper bolted down the pitch.

Smith soon realised his error and shot back towards his crease but was easily run-outby Quinton de Kock. Smith was visibly enraged by the blunder, yelling on his long walk back to the sheds.

"He will be fuming," the commentary team called from the box.

HANDSCOMB STARS ON DEBUT

Peter Handscomb starred on debut with a classy 54 in a 99 run partnership with Usman Khawaja. The 25-year-old from Victoria showcased his worth at the number five position with impeccable timing, footwork and balance against the quicks. His unusual technique was the talk of the town ahead of his debut, but that was hardly a worry when he showed what he could do with it. With a penchant for cover drives and a strong back foot technique, Handscomb will surely be one to watch in the summer ahead.

Fans, friends and players all took to Twitter to praise his performance on debut.



RENSHAW'S CONTROVERSIAL DISMISSAL

Matt Renshaw was caught in a controversial dismissal on debut after an edge was caught by Dead Elgar and was sent upstairs for review. Umpire Nigel Llong believed the ball had been grassed after Elgar briefly fumbled the catch mid-air. Despite many believing it slipped from Elgar's fingers, the third umpire deemed it legitimate and gave Renshaw out.

Despite his short time at the crease, Renshaw's patient technique as an opener shone through and displayed a maturity well beyond his years. Fans can only hope he gets more of a chance in the second innings to showcase his ability.