Christian Eriksen strike leaves Tottenham four points behind Chelsea.
New club record eighth straight league win in a row.
Mamadou Sakho stretchered off with injury in the second half.
Recap: Arsenal vs Leicester City, Middlesbrough vs Sunderland
Well that brings an end to our live Premier League coverage. We'll have all the reaction from around the grounds across the next 24 hours. We're back tomorrow with the Manchester derby from the Etihad Stadium. But until then, it's goodbye.
Full time: Crystal Palace 0-1 Tottenham Hotspur
The gap is back to four points in the title race and there is no downplaying how significant a night this could be for Tottenham. Eight wins in a row for the north Londoners delivered by a superb goal by Christian Eriksen. Neither team were near their best but a moment of quality separated the sides.
Into the final minute of stoppage time and the game is up for Palace. Free-kick to Tottenham inside their opponents half and they should run down the clock from here.
Trippier on for Dele Alli with just over two minutes of added time to go. Sure Jon Moss will be adding all this on. Probably.
Spurs keeping the ball in the corner in an effort to run down the clock. Palace frustrated but this is just what the visitors want. Looking like a vital three points for Pochettino
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Seven minutes added on at Selhurst Park. Primarily down to the Mamadou Sakho injury earlier in the half.
Christian Eriksen rejoices after netting a vital goal in the title race.
Into the closing minutes at Selhurst Park. Can Palace grab a late leveller and spark scenes of celebration in west London? Tottenham holding their own so far.
GOAL! Crystal Palace 0-1 Tottenham Hotspur (Christian Eriksen)
A dreadful game illuminated by one of the goals of the year. The Dane hits it from fully 30 yards and it takes on bounce before flying beyond Hennessey. Not at their best Spurs but boy they have come up with a crucial goal at a vital time.
Dier heads goalwards but high and wide from a near-post effort. Tottenham still to create anything meaningful since that Alli chance early in the half.
Eric Dier tackles Jason Puncheon during a frustrating night for Spurs.
Tottenham much the better side now in this second period, but it must be said they're still struggling to purposely break through the Palace rearguard.
Chance for Tottenham, Walker's cross picks out Alli and he side-foots wide of goal. Best chance for either side by some distance.
Back underway at Selhurst Park. No changes for Palace alongside the two made by Tottenham.
Two half time changes for Spurs in an effort to introduced some impetus. Wanyama and Dembele make way, for Son and Sissoko. Not sure how that affects the balance of the side but there is certainly more attacking players to call on.
Half time: Crystal Palace 0-0 Tottenham
Very little to get excited about in that first half. Spurs huffed and puffed and while they nullified Palace's multiple threats they barely had a sight at goal. Not a proper chance created between the two of them.
Harry Kane has cut a frustrated figure tonight.
Half a chance for Palace as Townsend rides a few challenges and lashes over the bar. Tottenham far from their best tonight and look like anything but champions-elect.
Victor Wanyama walking a disciplinary tightrope and avoids being red carded when he slides in on Townsend, having already been booked earlier in the half. The Kenyan is fortunate there as Jon Moss just has a word with the midfielder.
Christian Eriksen has two chances to dig out a cross for Tottenham but after his first effort is only half cleared, but his second effort is clutched by Hennessey.
Nothing to worry about from a Palace point of view so far. Kyle Walker had a raid down the right but it came to little, and now the England man lashes the ball over the bar.
Christian Benteke upset his former club Liverpool with a weekend double at Anfield and he almost adds to his tally when he shoots goalwards but Lloris gets down well to save.
Intriguing opening at Selhurst Park.
Palace doing much of the running in the opening 10 minutes but not much in the way of chances for either side.
Underway between Palace and Tottenham. Can Spurs close the gap?
Teams in the tunnel and on their way out ahead of kick-off. Selhurst Park is rocking as ever.
Approaching kick-off at Selhurst Park. This is the first of six tough fixtures for Tottenham between now and the end of the season. Win them all and they could be champions. Slip up, and the their challenge could be over.
The pre-match message from manager Sam Allardyce. One win from safety. Will it come tonight?
Underway in our two 7:45pm kick-offs at Arsenal and Middlesbrough. Live coverage here.
Mauricio Pochettino: "It is a big test for everyone. We move on from Saturday. We're disappointed but in football you cannot stop and think; you have to ready to go again. It is important to be ready and the team is ready to fight. It will be a tough game. They're on a good run and are confident about the way that they play."
Very curious decision for Pochettino to rest Kyle Walker on Saturday but bring him back in tonight; I'm sure he would have preferred to start at Wembley where he was only a second half substitute. He is in for a tough night for Andros Townsend and Wilfred Zaha to shepherd.
Tottenham not taking Palace lightly tonight.
Remember there are two other games in the Premier League tonight, and you need not go anywhere to follow them. Full coverage of Arsenal vs Leicester and Middlesbrough vs Sunderland can be found here. Enjoy.
A pair of alterations for Palace. James Tomkins is replaced by the returning Mamadou Sakho - who was ineligible against Liverpool - which James McArthur replaces Yohan Cabaye who drops to the bench.
Two changes for Tottenham from the weekend loss to Chelsea at Wembley. Ben Davies is entrusted with a place at left-back, replacing Son Heung-Min, while Kyle Walker starts ahead of Kieran Trippier.
Teams in from Selhurst Park......
Strong message by Martin Kelly despite Palace being almost free of danger.
Players arriving in south London.
No doubt this is a big night for Spurs as they travel to the other in-form team in the Premier League right now. Pochettino's men can surely not afford any slip ups in the coming weeks, though their schedule could not be tougher. Arsenal follow this weekend before another London derby against West Ham. Manchester United and Hull are also to come before the end of the season.
If they are to win the title, they're going to do it the hard way.
So how might both teams line up this evening, ahead of this crunch 8pm kick-off?
James Tomkins is not expected to play again this season for Palace having suffered a bad ankle injury at Liverpool. Scott Dann is also out.
Danny Rose returns for Tottenham, who have no other injury concerns. Michel Vorm could play again before the end of the season.
Having seen Chelsea first breeze in the FA Cup final at their expense and then sweep aside Southampton on Tuesday, Tottenham Hotspur and Mauricio Pochettino would be forgiven for feeling despondent as they again attempt to respond to the Blues in the Premier League title race.
The gap is back to seven and Spurs must react with an eighth victory on the spin in the top flight in order to push the title race into the dying embers of the campaign. Crystal Palace represent the other form team in the division however having lost just one of their last eight, a run which has included wins over three of the current top seven. Victory tonight would take Sam Allardyce's side into the top half.
All the build-up from Selhurst Park ahead of the 8pm kick-off on the way.
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