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Chelsea are ninth in the Premier League, Morecambe are seventh in League Two
Chelsea, who were beaten finalists last year, are eight-time winners - last in 2018
Morecambe, who have beat Maldon & Tiptree & Solihull Moors to reach this stage, have never progressed past the third round
Marine 0-2 Tottenham
Dion Dublin
Former Aston Villa & Man Utd striker on BBC One
Dele Alli is now doing exactly what I expected him to do.
It was a superb save by Bayleigh Passant to deny Matt Doherty, but Neil Young looks frustrated now. They were in the game at 1-0 down.
Image source, Reuters
Carlos Vinicius (30 mins)
Carlos Vinicius grabs his second.
It's a lovely pass from Dele Alli into Matt Doherty, who volleys on goal from a tight angle and Bayleigh Passant does well to get a glove to it.
The Marine stopper can only guide it into the path of Vinicius, however, and he smashes in from a yard to double Tottenham's lead.
Marine 0-1 Tottenham
Joe Rodon's going to need a new under shirt... the arm is hanging off, someone's done well to get a grip on that.
Marine 0-1 Tottenham
Dele Alli is enjoying plenty of the ball around the edge of the Marine area, but the non-league side have retreated with everyone behind the ball.
They don't want to concede a quick second.
Marine 0-1 Tottenham
That goal came after Marine's best spell in the game, but maybe that extra confidence led to a few gaps appearing for Spurs to exploit.
Gedson Fernandes fancies his chances from outside the box but fires over.
Marine 0-1 Tottenham
Dion Dublin
Former Aston Villa & Man Utd striker on BBC One
It was good play by Dele Alli - I thought he was going to shoot but he worked it well.
It's actually a bit of a lucky finish by Carlos Vinicius.
Image source, Getty ImagesCarlos Vinicius (23 mins)
Spurs get the breakthrough.
Dele Alli plays a neat one-two and then slides an excellent pass into Carlos Vinicius.
The Brazilian misses his kick at the first attempt from close range, but has the composure to then dribble round Bayleigh Passant in the Marine goal and tap in.
The Premier League side take the lead.
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Ethan: I have a feeling Mourinho would be satisfied with a 1-0 here.
Image source, Getty ImagesMarine 0-0 Tottenham
Tottenham know they are in a game now. Shaping up to be a classic cup tie, this one.
Marine 0-0 Tottenham
Dion Dublin
Former Aston Villa & Man Utd striker on BBC One
Where did that come from!?! What a strike!
He's got to be 35 yards out, and he knows he didn't have Harvey White for pace, oh my word!
Joe Hart's angles were all wrong there. What a strike.
Marine 0-0 Tottenham
What an effort!
Neil Kengni breaks into the Spurs half and has no one in support, so decides to have a pop from about 30 yards.
It's a great hit, and rattles the crossbar before Joe Hart pushes it behind for a corner.
So close to a Marine opener!
Marine 0-0 Tottenham
Spurs are forced all the way back to Joe Hart. He lumps long and Gedson Fernandes runs on to Carlos Vinicius' flick, but his cross is poor and floats behind.
Marine 0-0 Tottenham
Dion Dublin
Former Aston Villa & Man Utd striker on BBC One
Marine are looking good - they are looking very organised.
There's no gaps between the centre backs and full-backs - they look very disciplined.
Image source, Getty Images#bbcfootball or text 81111 (UK only)
Oliver: If Marine beat Spurs, I will run a half marathon tomorrow in pyjamas, slippers and a dressing gown and a Santa hat!
We won't forget this Oliver...
Marine 0-0 Tottenham
Marine will be very happy with their opening 15 minutes. A couple of half chances for Spurs, but that's it. The hosts are looking solid.
Marine 0-0 Tottenham
Dele Alli clears but Joe Hart has to be alert to rush out and stop Niall Cummins latching on to a loose ball as it's helped back into the Spurs box.
Marine 0-0 Tottenham
Marine look to be settling into this FA Cup tie slightly. Just getting a few touches of the ball and Niall Cummins wins a free-kick. Stick it in the box...
Marine 0-0 Tottenham
Lucas Moura is the man handed the job, but his free-kick loops up off the wall and Marine clear to safety.
Marine 0-0 Tottenham
Good feet from Harvey White and he is clipped on the edge of the box.
Dangerous territory. Be a few Spurs players waiting to hit this...
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Rob: If Marine beat Spurs I will run from Barnstaple to Crosby to celebrate the win
Brave Rob, very brave...
Image source, Getty Images