Wow! It's red for Lukhan Salakaia-Loto - direct contact to the head with force, say the officials, and Australia will be a man down for the remaining 20 minutes of this one.

The Wallabies replacement was out there for just nine minutes.

Bosh! That's a huge hit from Lukhan Salakaia-Loto on Santiago Grondona.

Was that high? The TMO is having a look...

Nice touch from Reece Hodge, finding touch deep in the Pumas half.

Felipe Ezcurra sends a box-kick sailing into the Sydney sky from the line-out and Marika Koroibete fails to gather in the air.

The first sight of a broken field as Australia get Argentina back-pedalling and Hunter Paisami is up quickly to close down the clearance kick. The Pumas scoop it up, but the Australian pressure is released as the hosts are flagged for dragging scrum-half Felipe Ezcurra into the ruck.

That's disappointing for the Pumas, giving away a penalty five metres from the Australia line from their own put-in.

Frustrated faces on the Argentine bench, that was the first time they've really ventured into Wallabies territory in the second half.

Reece Hodge leathers it through the sticks to maintain his 100% record today - three from three for the full-back.

It's scrappy, and Argentina give up another penalty after some Australia pressure in front of the posts.

This should give the Wallabies a chance to close the gap to four points.

This second half hasn't really got going - all a bit stop-start.

Oooh, that's got the crowd going though, Julian Montoya popping Nic White to the floor after the whistle had gone.

Reece Hodge thuds into an Argentine sandwich and it pops up for the Pumas to break... no, there was an earlier knock-on from Mario Ledesma's side and the hosts get the put in at the scrum.

Australia choose to keep it hands from a line-out but Rob Simmons is forced low and lets the ball slip from his grasp, which probably explains why both sides have reverted to kick tactics when in possession.

Nic White, sporting an admirable moustache, sticks a bright yellow boot on the ball to send it high into the wet Sydney sky and then repeats the trick moments later after Argentina pummel it back.

Nicolas Sanchez momentarily decides against putting his foot through the egg once more as he glides inside a tackle, before opting to stick it in touch...

Away we go in the second half.

I'm not sure we're going to see the cricket score needed from one of these sides to overtake the All Blacks and win the Tri-Nations Series.

But it's been an entertaining 40 minutes - and we've had a try, which was more than this match-up managed a fortnight ago...

That's half-time.

A solid showing from Argentina after some heavy Australia pressure early on.

The Pumas held firm and then made their numerical advantage count. They head into the break with a seven-point lead.

Wallabies full-back Reece Hodge jabs it over from in front of the posts.

Last chance of the half for Australia here from a scrum.

Nic White goes left to his outside backs but the Argentina pile bodies on the line to stop the hosts crossing.

There was a penalty in there somewhere, and the Wallabies have a chance to close the gap before the break.

Argentina think they're away again after a Jordan Petaia spillage, but Jeronimo De Le Fuente knocked on in an earlier tackle and it's brought back for a Wallabies scrum.

The Wallabies were unable to make their extra man count earlier, but Argentina are doing just that with Michael Hooper off the field for the hosts.

Rob Simmons looks almost bemused to find the ball bouncing back into his hands while in no man's land - the Australia lock opts to grubber it all the way down the line and into touch - give him the 10 jersey!