Chance for South Korea to seal it... surely? No! Just as Kim Shin-wook looks set to score when the ball bounces up invitingly in space inside the home box, Conor McLaughlin times a sliding challenge to perfection to block.

Not often you see your forward taking a throw-in. Unless it's Josh 'Rory Delap' Magennis. He lobs another grenade into the South Korea box, but they scramble to avert more danger.

And that is Son's last involvement. He smiles as he trudges off with a few cheers, plus a few boos, ringing in his ears. You can't boo the likeable Son, can you? Who does that?

Anyway, he's got dibs on the shower and is replaced by Yeon Ki-hun.

Son Heung-min has woken up it seems. Maybe because he knows he is going to get hooked shortly....

The Spurs man pops up on the right channel, beating the bye-line to the ball but unable to keep down a wild cross.

Son Heung-min takes it from the left-hand side, but his delivery is flat and Conor McLaughlin is one of a handful of light-blue shirts waiting to thump it clear with his bonce.

Meanwhile South Korea win another corner...

More substitutions than shots at the moment. Northern Ireland make their fifth of the permitted six changes... Paddy McNair, struggling for game time at struggling Sunderland, replaces Oliver Norwood.

...but Oliver Norwood can't pick out the big man. South Korea clear.

Liam Boyce's first major involvement is getting clattered about 40 yards from the South Korean goal. Another chance for Gareth McAuley to wander up, another chance for Northern Ireland to chuck one into the box...

More changes. Northern Ireland skipper Jonny Evans is given a breather as Craig Cathcart comes on in his place, while South Korea also take off their captain Ki Sung-yeung.

But those two have no time to settle into their attacking roles. First they've got to track back. South Korea attack through Lee Jae-sung who sees his 20-yard shot deflect off the leg of Gareth McAuley and go out for a corner.

John O'Neill
Former Northern Ireland defender on BBC Radio Ulster

I'm looking forward to seeing Liam Boyce. Fair play to Michael. I think the players look more comfortable in a 4-4-2.

We're past the 60-minute mark which means it is time for the customary raft of substitutions.

Northern Ireland make two attacking changes, Liam Boyce and Conor Washington getting the final half hour instead of Jamie Ward and Corry Evans.

Finally Northern Ireland manage to break out of South Korea's grip on the game, winning a corner up the other end. Oliver Norwood whips the ball in from the left but a team-mate can't stick their head - or any other body part - on it.

That means South Korea have another corner... and Trevor Carson is again on hand to stick his gloves on the ball. The Motherwell man will be more than happy with his international debut. As will his wife - if she is watching and not ruefully flicking through holiday brochures...

Sorry Northern ireland fans, I jinxed your team. South Korea have set up camp inside the home half now.

Park Joo-hoo drives forward to shoot, clipping the back of team-mate Kwon Chang-hoon on the way through, as Trevor Carson makes a flying save to his left.

Ah! Right on cue, South Korea have their first effort in the Northern Ireland goal in quite a while.

That sparks a flurry of away corners, Kwon Chang-hoon having a shot charged down for another...

Their best spell for a long time.

If you put someone who knows nothing about football inside Windsor Park and asked them which team was going to the World Cup this summer then they'd be more likely to pick the Northern Irish.

South Korea have offered no attacking threat since the break. No wonder boss Shin Tae-yong is stood on the touchline with his bottom lip sticking out.

Image source, Reuters

"Oh Gareth McAuley!" rings around Windsor Park as the big Northern ireland defender goes up for another set-piece. This time Oliver Norwood's delivery is too high - even for 6ft 5in McAuley - and goes out for a throw-in on the opposite side of the field.

South Korea manage to clear the resulting corner by Oliver Norwood, but they are still looking vulnerable from high balls into the box.