Medical staff and St. John's Ambulance continue to attend to the incident among the Forest supporters. We hope the fan is ok.

Both sets of players take on water for the final 15 minute push.

It's half-time in extra time, but there is also concern here with a medical emergency among the Forest supporters,

Medics have sprinted over to attend to the fan.

Image source, Reuters

Stevie G: Great shot of a dad with his two young lads at the Blackpool match, that’s why we all love the FA Cup!

The TV cameras just captured a very young man being taken home from the stands by his mum. Way past bedtime for a few supporters here.

The last time Gonzalo Montiel took part in a penalty shoot-out, he scored the winning kick in the World Cup final for Argentina against France in Qatar.

But will he handle the pressure if we have a shoot-out at Bloomfield Road?

Shayne Lavery stands up his defender, cuts inside and shoots from 20 yards. Deflected for a corner.

Nuno is making another couple of subs - Murillo is replaced by Scott McKenna. It is the Scottish defender's first appearance since September.

The other change sees Gonzalo Montiel replace Neco Williams.

Forest have now had 21 shots tonight. But crucially, just five on target.

They did not make hay while they were dominant, and now the metaphorical sun is shining on Blackpool.

Not the real sun though, it is frigid at Bloomfield Road.

Lyle: Scrap third round replays my eye! This is a bona fide thriller unraveling at Bloomfield Road.

Richard O'Donnell has made some great saves since coming on in the second half!

The veteran stopper stands strong to block a well hit Danilo effort from close range. The offside flag subsequently went up, but the 35-year-old was not to know that.

Charlie Adam
Former Blackpool midfielder and current Fleetwood Town manager on BBC Radio 5 Live

Credit to Blackpool, they have not given up at any point, even at 2-0 down and have given themselves a real chance of reaching the next round.

If you look at who finished the 90 minutes stronger then you'd say you fancy Blackpool to win.

But Nuno will have got his Forest side in for a chat and got them re-organised. You probably expect them to go on and take control of the game again.

Image source, Reuters

Blackpool give away a soft corner as Kyle Joseph allows the ball to bounce off his shoulder.

Neco Williams' delivery goes all the way to Nicolas Dominguez on the far side, but he lashes his shot wide.

Forest make the first attacking move of extra time, but their cross in from the left is cleared by all-action Albie Morgan.

A misplaced back-pass, a superb strike... Morgan has been everywhere tonight.

Bristol City await the winners of this one.

Extra time has begun.

Michael Emons
BBC Sport at Bloomfield Road

And breathe. A second half no-one saw coming when Danilo pounced on Albie Morgan's loose backpass.

It has turned into a classic. With at least 30 minutes more to go.

A positive night for Everton after another difficult week off the pitch. Not only a first win since 16 December but they now have three clean sheets in a row.

Image source, Getty Images

Forest are angry as the final whistle is blown just as Nicolas Dominguez was about to send a cross in.

But after 100 minutes of football tonight, and 90-plus in the first match, we will have at least half an hour more.

Decent effort by the League One side but it's Norwich who will be heading to Liverpool in the next round after turning it around in the second half.

Charlie Adam
Former Blackpool midfielder and current Fleetwood Town manager on BBC Radio 5 Live

Dembele has got to finish it earlier!

He tries to go around the keeper, who does well to delay him, but he can't be going round the keeper there.

The longer he tries to go around the keeper the more he narrows the angle to shoot, and he gives the defender time to get back and make the block.

Stopped on the line! Blackpool denied a winner!

Karamoko Dembele evades the defence and is free one on one with Odysseas Vlachodimos. He goes round the keeper, but is forced wide and it allows Orel Mangala to get back in time to block the shot on the line.

Superb drama.

...cleared by a bicycle kick from Albie Morgan!