Image source, Getty Images

Dele Alli is off to a heroic reception, on comes Moussa Sissoko. Chelsea send on striker Michy Batshuayi too. 

Thibaut Courtois didn't cover himself in much glory for that second header from Dele Alli, he looked concerned about the prospect of colliding with a team-mate or post and rather flapped at the ball coming in.

I don't think he would have saved it anyway to be honest.

Chelsea last had an effort on goal in the 59th minute.

Image source, Reuters

What a shout that is. Officer Crabtree in nets. 

Spurs have 10 minutes to mount their own resistance. 

Lewis Chapman: Pedro has been absolutely awful today! Lost possession so many times.

Rehan Kayani: One loss, a great cushion, about half way through yet cue the talk of the title race being blown wide open.

Derm K: Courtois a lookalike for the policeman in 'Allo 'Allo .......except tonight its Alli Alli   

N'Golo Kante comes off and the wave of boos which greet the oncoming player tell you that it's former Arsenal captain Cesc Fabregas on in his place. 

Christian Eriksen lashes a free-kick wide from considerable distance. Into the last 15 minutes now, and Chelsea are yet to really threaten since that second Dele Alli goal. 

Jermaine Jenas
Former England midfielder on BBC Radio 5 live

Just having a look at this change from Mauricio Pochettino, Harry Winks, he is showing a lot of faith in the youngster.

Mousa Dembele has put a lot work in. The strength he has in there has been so important. This is a real show of faith from his manager to put Harry Winks on in this pressure situation, this environment.

John Terry looks extremely unhappy in the stands, perhaps unsurprisingly. His side are 2-0 down and he's missing 'Italy's invisible cities' on BBC One. 

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Mousa Dembele is off, on comes Harry Winks for the last 20-odd minutes. A show of faith for the youngster. 

BBC Radio 5 live

There will be a Radio 5 live football social after tonight's game - and they big question is, will a win for Spurs open up the title race?

What is going on with Jermain Defoe? And what about the situation at Hull? 

Telephone 0500 909693 or text 85058. Tweet @bbc606

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Spurs are so deep now there must be 18 or 19 players in the penalty area as Pedro tries to put a cross in. 

Chris Harvey: Tottenham win here and it becomes a six-way title fight, all in with a chance.

David Randall: Dele Alli has been on a hat-trick in his last few games now. Did no one buy the boy a new ball for Christmas?  

The Optimist: Spurs' Dele Alli reminds me of the young Steven Gerrard of 00-01 EPL season.  

The home crowd get interested as an already-booked Gary Cahill slides in on Harry Kane but the defender gets a toe-end on to the ball. Pedro then overhits a pass when he had a chance to send Eden Hazard in on goal.

Image source, Reuters

How's your belief Chelsea? If they can get one it will make the final 20 minutes or so very interesting.

Jermaine Jenas
Former England midfielder on BBC Radio 5 live

Dele Alli is constantly stretching that Chelsea defence forward and backwards and making them work.

That's what they have done better in the second half. In the first half David Luiz was eating the short balls up, but the runs from Alli and the balls in behind have seen Harry Kane come to life.

Image source, Reuters

Handbrake off, turbo on. Willian replaces Marcos Alonso and Pedro is asked to do a job as wing-back. 

Closest challengers Liverpool will stay five points shy of Chelsea if Spurs win this game. Is a defeat for Chelsea good news for the neutrals as well?

Unless you got engaged, got a new job, a new car and six pigs in blankets I bet you haven't had as good a Christmas as Dele Alli. He's now scored two goals in all three games since Christmas Day.

Image source, .

Tottenham's two goals really were uncannily similar.

Mad Max: So nobody is gonna question Courtois over that excuse for a save / karate move?  

Ahmed: England have a gem in Dele Alli.

Steve K: Don't forget that conker rules apply here. If Spurs win, they add Chelsea's 13 wins in a row to the 5 they will have achieved.

That's one way to throw the title race open, Steve...