Postpublished at 20:37 Greenwich Mean Time 22 February 2015
Are Souths over for another?
FT: St Helens 0-39 South Sydney
Souths inflict a record World Club Challenge defeat on Saints
Joel Reddy scores two of Souths' seven tries
NRL sides win all three World Club Series games
Phil Cartwright
Are Souths over for another?
If there was any difference between the sides involved in the first two World Club Series matches, it was the quality of the kicking from the two NRL clubs. That's been increasingly evident tonight. Full-back Jonny Lomax gathers another tester under pressure from the Rabbitohs, and at the other end a Saints break ends when Lomax can't find a white shirt with his pass.
BBC Sport's Nathan Middleton at Langtree Park: "Souths' sixth try is the cue for one or two Saints fans to head for the exits with no way back now for their team.
"One or two are still trying to get chants going for their side, but are being slightly drowned out by the wind which has really picked up for the second half.
"No side has been 'nilled' in a World Club Challenge match since 2003 when Saints were heavily beaten by Sydney Roosters in Bolton."
South Sydney flood forward again. Bryson Goodwin chases a kick from the left touchline and has he scored? No, says the video referee. James Roby just about got there to boot the ball behind before Goodwin can ground it. As Roby kicked, his knee inadvertently collided with Goodwin's head and the Souths man has stayed down.
Steve Price:, external Not a good day for the Saints of the round ball and the Saints of the oval ball.
In case you missed it earlier, Southampton were beaten 2-0 by Liverpool in the Premier League this afternoon. You can see highlights on Match of the Day on BBC One and the BBC Sport website at 22:30 GMT.
Ray French
BBC Radio Merseyside
"This South Sydney side are very fit considering they have not played a competitive game yet. The test of this side is that Saints have been under pressure whether it has been a kick to the corner, a kick to the posts or the run. This has been a very professional performance by the Aussies."
Chris McQueen takes advantage of a tiring Saints defence to slide over in the corner. Issac Luke takes over kicking duties and puts his effort wide.
St Helens were beating Salford 52-6 just 10 days ago. This is a little bit different to that night.
Ruthless defending from South Sydney. St Helens work the ball wide to Tommy Makinson, one of the most lethal finishers in Super League, but immediately three tacklers are with him and he's bundled into touch. Remember, this is a Souths team that hasn't even started their domestic season yet. Even post-Sam Burgess, they look the team to beat in the NRL.
Saints get the ball back, they make ground and a ricochet gives them another set of six 20 metres out. Penalty early in the tackle count - a repeat set for Saints. Can they get on the scoreboard?
Another testing kick from Souths half-back Luke Keary that turns Tommy Makinson around. Makinson gathers inside his own in-goal area and is swallowed up by a swarm of red and green jerseys. Goal-line drop-out. Their kicking game is so clinical, it's frightening.
If it wasn't game over at half-time, it probably is now. On the last tackle, Adam Reynolds puts a kick up and it's not cleanly gathered. Half-back Luke Keary picks up the pieces and goes over for a fifth Souths score. Reynolds adds the extras and it's 30-0. That record margin of victory in a World Club Challenge is in sight.
One tackle of the six remaining for South Sydney when we get back under way. With the action still stopped, the television cameras pan to Nathan Brown in the stands. He was coach of St Helens last season, leading them to two trophies, and is back to watch his old club in the World Club Challenge. Jordan Turner has a cut above his eye and is being helped to the sidelines, where his future in tonight's game will be assessed.
Huge hit by Jordan Turner on opposing centre Dylan Walker. There's a clash of heads, purely accidental, that leaves both players requiring treatment.
Souths are quick to pounce on any error Saints make, and again it's that man Issac Luke who spots an opportunity when Saints cough up possession. They make ground and earn a penalty 20 metres from the St Helens line.
A quick break from Rabbitohs hooker Issac Luke gains the visitors valuable ground with their first set of six but St Helens repel them with little alarm.
We're back under way in the World Club Challenge.
So is there any way back for Keiron Cunningham's St Helens? Or will the red and green machine continue to dominate? The second half at Langtree Park is moments away.
To listen to commentary from BBC 5 live sports extra or BBC Radio Merseyside, click on the Live Coverage tab.
Both are available on desktop, but only the 5 live sports extra commentary can be accessed on mobile and tablet devices.
A reminder that you can watch the highlights of all three World Club Series matches on the Super League Show tonight. It's on BBC One at 23:40 GMT.
Presenter Tanya Arnold and Leeds Rhinos prop Jamie Peacock have had a special guest with them...
Ryan Douglas:, external Masterclass in rugby league on show tonight #worldclubseries #GoRabbitohs
Andy Taylor:, external Carnage