Anthony Gordon has been really involved already since coming on as a substitute.

He sweeps in a lovely delivery but it's just slightly too deep for Miguel Almiron to poke home at the far post.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

It must feel like a punch to the head because it was volleyed from about two yards away from him

If he deliberately headed that I'm impressed.

He stopped a definite,100 percent goal there.

Chaos in the Wimbledon box as Newcastle play around the edge of the area before Tino Livramento whips in a decent ball.

It drops for Joe Willock and Riley Harbottle takes the full effort of his shot in the face.

The Wimbledon defender is still down when another shot comes in, which is also blocked. Harbottle looks like he's going to be fine but that was brave, if accidental, defending.

Huseyin Biler makes way for Josh Neufville and Joe Piggott is off for Matty Stevens for the visitors.

Lewis Hall is on for Emil Krafth and Anthony Gordon for Joelinton for the home side.

Joe Willock drifts into the area and does really well to keep the ball alive but his cutback falls to an opponent.

Newcastle playing with a bit more freedom in this half but it's still only that one-goal advantage.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

I'll just be intrigued to see if at any point Wimbledon decide to take a little bit of a chance and go to take one of the centre-backs off.

You've got three centre-backs and they're generally marking one man.

Sean Longstaff goes into the book for putlling back Huseyin Biler after the Newcastle midfielder loses the ball in the middle of the park.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

Everybody moves when Guimaraes gets the ball because they all know he can pick those passes out.

Image source, PA Media

The first corner comes to nothing but Newcastle quickly have another one.

It's taken short and comes out to Tino Livramento, who curls one towards the far post but Bruno Guimaraes can't quite get the connection he needs and it's out for a goal-kick.

Good play from Newcastle as Sean Longstaff and Joe Willock look to get on the front foot.

Longstaff fizzes one in but it deflects off Wimbledon defender Joe Lewis for a corner.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

I think Newcastle will want to finish this game off early.

Image source, PA Media

Back under way at St James' Park.

As expected, Martin Dubravka has had to come off. He's clearly unable to continue with that knock he picked up earlier. On comes third-choice keeper Odysseas Vlachodimos for his first appearance since joining from Nottingham Forest this summer.

Harvey Barnes is also replaced by Bruno Guimaraes.

Newcastle have had 84.4% possession to AFC Wimbledon's 15.6%.

Wimbledon have not managed a single shot, on target or otherwise, while Newcastle have had six with two on target.

It has taken a penalty for Newcastle to break the deadlock but the visitors need to start making the most of their limited opportunities to have a chance at St James' Park.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

You knew Wimbledon are only going to get limited chances.

They had a half-chance when Dubravka came out, got injured, Bugiel that was but apart from that it has been utter, complete dominance from Newcastle.

All they need to do now is say to the opposition is 'you've got to come out now' and if they come out they could get picked off.

Almost the last action of the half, that one. It's been a solid defensive display from Wimbledon and they'll be disappointed to go in trailing at the break.

Newcastle not at their best but have that all-important goal.

Image source, Getty Images

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

That was a lovely cool, calm penalty.

You thought 'is he going to blast this over the bar?'

Exactly the opposite.

It was Huseyin Biler who brought down Miguel Almiron for the penalty and he was also booked for the foul.

By the way, Martin Dubravka is still struggling and is clearly hoping to get through to half-time to assess the damage but he does look to be in some bother.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live

There's no doubt about that. It's one of those ones with VAR, you wouldn't even look at it twice.