Justin Morgan
Former New Zealand assistant coach

Up until that pressure, you would say the momentum was with Tonga. Jermaine McGillvary and Sam Burgess contributed to England getting the advantage: they broke the 'arm-wrestle' wide open and the penalty just relieved the pressure.

No mistake from Gareth Widdop.

A big moment - it means Tonga will need to score three times to take the lead.

Those were the first points since the 17th minute, when Widdop converted his own try.

Image source, NRLPhotos

The ball is stolen from Sam Burgess with two Tonga players in the tackle - England penalty 30 metres out.

Gareth Widdop will go for the sticks...

My comment on 44 minutes of this possibly "being England's day" was met with a groan by one of my colleagues.

That's what following England in World Cups can do for you.

I promise I won't say anything else like that to jinx it.

England seem to have settled things after that big Daniel Tupou chance for Tonga early in the second half.

Brian Noble
Ex-Great Britain coach on BBC One

That was some pass from Will Hopoate. Daniel Tupou split the line open and England have escaped.

Tonga are strong ball carriers. If you give them territory they'll find an offload to give them that opportunity.

Image source, Getty Images

Paul Brown: Massive second half this... Tonga will be hammering us to try and peg this back. Hopefully England's defence will stay strong.

What a chance missed!

Tonga created the extra man on the left touchline and all Daniel Tupou had to do was catch the ball.

Dropped.

You begin to get the feeling this might be England's day. They get a penalty to relieve some of the pressure.

Image source, Getty Images

Tonga have made a bright start to the second half, assisted by a couple of penalties conceded by England.

An early Tonga score and the complexion of this semi-final completely changes.

Justin Morgan
Former New Zealand assistant coach

England can't take their foot off the gas for one second. The back half of the first half saw too many errors creep in: if England start this half with too many unforced errors, it will allow Tonga to creep back into this game.

Justin Holbrook
St Helens head coach on BBC One

Tonga have really whacked the forward pack but England are up for it.

England have to complete their sets but can't go into their shells. They can't protect the lead - we've seen Tonga can make something out of nothing.

England have to go out and, for the first 20 minutes of this half, do exactly what they did for the first 20 minutes of the first.

Image source, AFP/Getty Images

England's Gareth Widdop kicks off the second half, his side leading 12-0 with 40 minutes to play.

Australia await the winners in next Saturday's final.

Jon Wilkin
Former England international on BBC One

England don't need to do anything other than complete their sets and get down the right end of the field. Do that, and they will score points in this half.

You don't play Rugby League unless you thrive on contact. There have been some huge hits in this game. Tom Burgess came on the field and had a huge impact.

The hits do hurt, but, as we saw with James Graham, it hurts more when you've relaxed your body and are less prepared for contact. If England do get through, there will be some sore bodies and recovery will be key. But they have to do a lot here first.

BBC One

Can England hold on and reach the World Cup final? The teams are back out onto the field.

Watch the second half on BBC One or listen on BBC Radio 5 live - click on your coverage option of choice at the top of the page.

Jon Wilkin
Former England international on BBC One

England are so subtle in their skill through the middle of the park. There are so many runners in motion - so many options. We've seen how important that style is for England.

At 12-0, you felt England were in control, although Tonga were playing well. I though they could have kicked on further - Tonga were having chances, but just not converting.

You watch Tonga being threatening and making breaks, but the number of England shirts at the back... The one thing that sets England apart is their attention to detail when it comes to defending. James Roby is always back and we saw an exceptional chase back from James Graham.

Wayne Bennett will probably still be talking about errors, mind. Tonga will want to improve their execution but England will know they could really have buried Tonga if they'd had a better final ten minutes at the end of that half.

Justin Holbrook
St Helens head coach on BBC One

I thought the final eight minutes was a worrying time for both sides - they were both making errors. Either side could have scored, and if Tonga had come up with a try... You felt that a try in that moment could have been big. 12-0 is a good score with the way things have gone, but Tonga probably just need to relax a little.

Steve Till: Satisfactory from @England_RL, external but must be aware of Tonga's second half performance of last week and not allow them any early second half impetus. #bbcrl, external

Martin Bolton: Good first half performance from @England_RL, external and leading to nil. Need to keep it up and be disciplined in second half

Justin Holbrook
St Helens head coach on BBC One

There was a really fast start to that game, with no errors for the first five or 10 minutes.

That's the way England have to play - it suited them down to the ground.

Tonga are a team of power athletes, not endurance athletes. England have to maintain this.

If you're reading this live text commentary in the UK and you're up at this hour on a Saturday morning, there's a fair chance you're also keeping across the latest from the first Ashes Test between Australia and England in Brisbane.

Shock - Steve Smith is still there for the Aussies. The Australian captain has completed his 21st Test century and the hosts have a slender first-innings lead.

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Image source, Getty Images

England's James Graham: "It's tough, we have got to be on every play, but we knew that before a ball was kicked.

"We've got to defend for our lives and keep turning up for each other."