The Boxing Day Test is up for grabs, with Australia collapsing and India wasting vital chances on day four.

As tension intensified at the MCG, Australia’s middle order failed again, Indian youngster Jaiswal dropped three catches and Pat Cummins wanted the third umpire to review a decision made by the third umpire.

Here are the quick hits from day four of the fourth Test between Australia and India.

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1. Cummins tries to revise a review

There was drama early on day four when the Australians thought they had dismissed Mohammed Siraj caught in errors.

Siraj sent a Yorker-length Cummins ball to Steve Smith in the slips, but the umpires wanted to check whether the ball had bounced off the edge of the bat on the turf before bouncing back to Smith.

Replays showed the ball almost made contact with Siraj’s bat and the pitch simultaneously, before heading towards Smith.

On the field, the Australian players saw the first replay and thought it was out for good and began preparing for their innings at bat, only to be stunned when a no-out call came from the third umpire.

Cummins was in disbelief at the decision and attempted to review the ruling, repeatedly making the “T” symbol with his hands towards the referees, but to no avail.

The Australians couldn’t believe the third official didn’t evaluate any of the other available camera angles before making his decision.

Fortunately for Australia, the controversial call did not prove too costly, with Nitish Kumar Reddy being caught on the boundary three balls later to end India’s innings 105 runs short of the team’s total of 474. Australia for the first round.

2. Bumrah gives Konstas a taste of his own medicine

If you needed further proof that Sam Konstas was getting under India’s skin, his dismissal on day four provided it.

Konstas’ second Test innings was far less exciting than the first, with the opener looking extremely rough during an 18-ball stay that yielded eight runs.

Konstas was sent packing thanks to a terrific delivery from Jasprit Bumrah, which slipped into his pads and rattled his middle stump.

Bumrah’s celebration was epic – he turned to the Bharat Army in his follow-up and urged them to get up and move by waving at them with both arms raised.

It was a clear imitation of Konstas having fun with the crowd throughout the first three days of this test.

During his first day’s innings, Konstas gestured to the Australian fans to get up and move around after scoring his half-century.

He has done the same on numerous occasions on the field, to Australian and Indian fans, and it seems that these actions have not gone unnoticed in the Indian dressing room.

Bumrah is not usually a fiery customer, but the fact that he reacted the way he did shows that Konstas is indeed on the Indian champion’s radar.

3. Australia collapses mid-session

The match was on a knife edge after lunch when Australia came forward to bat with Steve Smith and Marnus Labuschagne at the crease.

Australia operated at a rate of just a hair over two runs per over during the morning session, which left the batters in an awkward position.

Smith, Labuschagne and the other Australian middle-order bats needed to not only stay at the crease, but score at a fast enough pace to enable a potential declaration and give the bowlers enough time to bowl India out in the second innings .

As it turned out, neither of these events happened.

Smith found himself caught behind for 13 after attempting a nasty hack on Siraj at the offside end, triggering a collapse that breathed life into India.

Rohit Sharma immediately brought Jasprit Bumrah back into the attack and Bumrah responded by removing Travis Head and Mitch Marsh – two players capable of increasing the run rate – in the space of four deliveries.

If that wasn’t enough, Bumrah added the wicket of Alex Carey a few overs later with a test match ball contender.

At this point, his numbers for the spell were as follows: 2-0-4-3.

4. Jaiswal drops three chances that cost India 63 runs

One of Brisbane’s key moments was when Steve Smith dropped KL Rahul on the first ball of day four.

Rahul then added 41 more runs to his score and, more importantly, helped India avoid the follow-up and give Australia no chance of winning the rain-affected Test.

Fast forward to Melbourne, and two falls on day four could be seen as a key moment to decide the nail-biting test.

Poor Yashasvi Jaiswal scored two chances that really should have been taken at Test level.

First up was Usman Khawaja, who had scored two off eight balls when he received a straight delivery which he sent off his pads straight to Jaiswal at leg gully.

Jaiswal was in the perfect position and the ball came at the perfect height. But it has gone down.

Move later in the innings and with India in the lead, only Marnus Labuschagne remained as the recognized batter.

On 46 and with Australia reeling at 6-99, Labuschagne played a late cut which went straight to Jaiswal at gully.

But once again, the 23-year-old missed his chance.

Bowler Akash Deep was furious. Captain Rohit Sharma punched the air in disgust.

The last drop came in the finale before tea. Cummins, on 21, pushed forward and defended a ball from Ravindra Jadeja. Jaiswal, in a silly moment, stood too high and the ball clipped his fingertips and went between his legs.

Khawaja added 19 more points before being dismissed for 21. Marnus made 70 and Cummins finished with 41.

In a Test match that goes down to the wire, will India regret the extra 63 runs added after three of their batters were given lifelines?

5. Australia is experiencing its own debacle saga

A face-off on day two between Virat Kohli and Yashasvi Jaiswal grabbed headlines after day two. India then had all sorts of drama on the third day between the wickets, with communication breaking down on several occasions.

On the fourth day, it was Australia’s turn to have a mix-up which cost them a wicket.

Mitchell Starc whipped the first ball of the 59th over from his hip to deep square leg. He runs to the end, turns around, then runs back for the second.

Unfortunately, he doesn’t realize that Pat Cummins said “NO”.

The ball is pulled towards the striker’s side, where Starc was running, and collected by wicketkeeper Rishabh Pant.

Pant then pulls at the other end and hits the stumps with Starc out of his ground.

It was an unforced error from Australia that cost them their eighth wicket and a lead of 261 runs.

Starc looked furious because he was running towards the dangerous side, where the ball was initially thrown.

If Cummins decided to come back for a second, Starc might have been dropped from the striker’s side anyway. It was an exceptional throw from deep, just over the off stump and into Pant’s gloves.