Robert Huth scored a late winner as Leicester beat Premier League top-four rivals Tottenham.
The Foxes, who are now level on points with leaders Arsenal, looked like they were heading for a fourth league game without a goal until unmarked Huth headed home Christian Fuchs' corner.
Harry Kane had Spurs' best chance when his effort was touched on to the bar by keeper Kasper Schmeichel.
Foxes striker Jamie Vardy returned from groin surgery but had a quiet game.
It was the second of three meetings between the clubs in 10 days, following Sunday's 2-2 FA Cup draw - with their replay to be shown on BSports One, next Wednesday.
Relive Leicester's win over Tottenham.
Listen: 'Leicester would be devastated not to make Champions League now'
Football Daily podcast - Does anyone want to win the league?
Foxes breathe new life into challenge
It's only January, not May - Ranieri
There had been fears Leicester's slide was beginning after three games without scoring - and they looked like making that four in a row before Huth's late goal.
But this win - which takes them seven points above fourth-placed Spurs and eight clear of West Ham in fifth - will give them real hope of finishing in the Champions League places, if not higher.
They were characteristically short of possession with only 39% - their average of 40.62% is the third lowest in the league - but they have shown they are far from a two-man team with Riyad Mahrez and Vardy, their two stars of the campaign, subdued throughout.
Do Spurs need a new striker?
Harry Kane (10) was well supported and Erik Lamela played ahead of him - as shown in the average positions graphic
Maybe, but it was wasteful finishing rather than the lack of a second striker that cost Spurs against the Foxes.
Manager Mauricio Pochettino has continually insisted it is not urgent they sign a new striker to partner Kane, who is their top scorer with 11 league goals.
The England international was their sole striker against Leicester but Spurs' formation meant Erik Lamela, Christian Eriksen and Dele Alli got forward to support him regularly.
Those four had a combined 18 shots, although Kane's effort which Schmeichel touched on to the bar was one of only five shots on target the team managed.
Man of the match - Robert Huth
In a game short of outstanding performers, Robert Huth's role in the Foxes keeping a clean sheet and a goal with one of his two touches in Spurs' half made him the star man
'Boof'
Former England captain Alan Shearer on Match of the Day: "It's a remarkable story for Leicester. Only Manchester City have scored more goals than them.
"It was a good old-fashioned proper plant your feet, arch your back and get your neck muscles going header from Huth. Look at the power. Boof."
Ex-Germany midfielder Dietmar Hamann: "It's a blip for Spurs. They're still in a good position and favourites to reach the Champions League. The worry is the lack of form from Christian Eriksen, who hasn't scored in the league since October. They are over-reliant on Harry Kane. If he gets injured they'll be in trouble."
'So much work to do'
Claudio Ranieri tried to sign Mauricio Pochettino for Atletico Madrid during his playing days
Leicester boss Claudio Ranieri told BSports Match of the Day: "We wanted to win but we knew it was a difficult match. Tottenham started very well and put us under pressure but we didn't lose our confidence or shape and it was difficult for them.
"In the second half it was an open match. We both had chances and we scored the goal. Unfortunately it's January, not May. There's so much work to do. We have to remain calm and believe in what we're doing."
Result hard to explain - Mauricio Pochettino
Spurs boss Mauricio Pochettino: "I'm disappointed. We created the better chances. You need to score. We need to keep calm and try to improve.
"All the stats are positive for us. It's difficult to explain - we deserved more and to win the game. In football you can get punished for one little mistake. We are going to try to analyse the game. We were unlucky tonight."
The stats you need to know
- Leicester have now secured more points this season (43) than they did in the whole of the 2014-15 Premier League campaign (41)
- Robert Huth's goal ended Leicester's run of 374 minutes without a goal in the Premier League
- The Foxes earned their first league win at White Hart Lane since October 1999
- Spurs have won just one of their past four Premier League home games (D1 L2)
- Claudio Ranieri has never lost a Premier League match as a manager against Tottenham (W7 D3)
- Since breaking the Premier League record for goals in consecutive games, Jamie Vardy has scored just one goal from six shots on target in seven games
Next up for both sides
Both sides will be confident of wins on Saturday in the Premier League. Leicester visit bottom side Aston Villa, while Tottenham host third-from-bottom Sunderland.
The Foxes and Spurs then meet again next Wednesday in their televised FA Cup third-round replay.
Lineup, Bookings (1) & Substitutions (6)
Tottenham Hotspur
- 01 Lloris
- 02 Walker
- 04 Alderweireld
- 05 Vertonghen
- 33 Davies
- 15 Dier Booked (Onomah - 90' )
- 28 Carroll (Son Heung-min - 82' )
- 23 Eriksen (Dembélé - 71' )
- 20 Alli
- 11 Lamela
- 10 Kane
Substitutes
- 03 Rose
- 07 Son Heung-min
- 13 Vorm
- 16 Trippier
- 19 Dembélé
- 25 Onomah
- 27 Wimmer
Leicester City
- 01 Schmeichel
- 17 Simpson
- 05 Morgan
- 06 Huth
- 28 Fuchs
- 26 Mahrez (Dyer - 90' )
- 14 Kanté
- 04 Drinkwater
- 11 Albrighton
- 20 Okazaki (King - 77' )
- 09 Vardy (Ulloa - 71' )
Substitutes
- 10 King
- 22 Gray
- 23 Ulloa
- 24 Dyer
- 27 Wasilewski
- 32 Schwarzer
- 33 Inler
Match Stats
Live Text Commentary
Full Time Match ends, Tottenham Hotspur 0, Leicester City 1.
90:00 +4:41 Full timeFull Time Second Half ends, Tottenham Hotspur 0, Leicester City 1.
90:00 +3:33Foul by Erik Lamela (Tottenham Hotspur).
90:00 +3:33N'Golo Kanté (Leicester City) wins a free kick in the defensive half.
90:00 +3:04Delay over. They are ready to continue.
90:00 +2:48Delay in match Nathan Dyer (Leicester City) because of an injury.
90:00 +2:21Ben Davies (Tottenham Hotspur) wins a free kick in the defensive half.
90:00 +2:21Foul by Nathan Dyer (Leicester City).
89:57 SubstitutionSubstitution Substitution, Tottenham Hotspur. Josh Onomah replaces Eric Dier.
89:54 SubstitutionSubstitution Substitution, Leicester City. Nathan Dyer replaces Riyad Mahrez.
89:15Kyle Walker (Tottenham Hotspur) wins a free kick in the defensive half.
89:15Foul by Leonardo Ulloa (Leicester City).
87:18Attempt blocked. Harry Kane (Tottenham Hotspur) left footed shot from outside the box is blocked.
86:39Offside, Leicester City. Kasper Schmeichel tries a through ball, but Leonardo Ulloa is caught offside.
84:15Foul by Dele Alli (Tottenham Hotspur).
84:15Christian Fuchs (Leicester City) wins a free kick in the defensive half.
82:41 Goal scoredGoal! Goal! Tottenham Hotspur 0, Leicester City 1. Robert Huth (Leicester City) header from the centre of the box to the top left corner. Assisted by Christian Fuchs with a cross following a corner.
82:09Corner, Leicester City. Conceded by Dele Alli.
81:04 SubstitutionSubstitution Substitution, Tottenham Hotspur. Son Heung-Min replaces Tom Carroll.
80:28Attempt blocked. Harry Kane (Tottenham Hotspur) left footed shot from the centre of the box is blocked.
Jan Vertonghen (Tottenham Hotspur) wins a free kick in the defensive half.
79:42Foul by Leonardo Ulloa (Leicester City).
78:55 BookingBooking Eric Dier (Tottenham Hotspur) is shown the yellow card for a bad foul.
78:51Foul by Eric Dier (Tottenham Hotspur).
78:51Leonardo Ulloa (Leicester City) wins a free kick in the defensive half.
78:04Attempt saved. Dele Alli (Tottenham Hotspur) right footed shot from outside the box is saved in the bottom right corner. Assisted by Harry Kane.
76:11 SubstitutionSubstitution Substitution, Leicester City. Andy King replaces Shinji Okazaki.
75:24Attempt blocked. Leonardo Ulloa (Leicester City) right footed shot from the centre of the box is blocked. Assisted by Daniel Drinkwater.
75:21Attempt missed. Daniel Drinkwater (Leicester City) left footed shot from the centre of the box misses to the right.
75:20Attempt blocked. Riyad Mahrez (Leicester City) left footed shot from the centre of the box is blocked. Assisted by Marc Albrighton.
74:36Attempt missed. Erik Lamela (Tottenham Hotspur) left footed shot from the centre of the box is just a bit too high. Assisted by Ben Davies with a cross.
73:12Corner, Leicester City. Conceded by Tom Carroll.
71:40Foul by Toby Alderweireld (Tottenham Hotspur).
71:40Wes Morgan (Leicester City) wins a free kick in the defensive half.
71:10Corner, Tottenham Hotspur. Conceded by Danny Simpson.
70:30 SubstitutionSubstitution Substitution, Tottenham Hotspur. Mousa Dembélé replaces Christian Eriksen.
70:08 SubstitutionSubstitution Substitution, Leicester City. Leonardo Ulloa replaces Jamie Vardy.
69:01Corner, Tottenham Hotspur. Conceded by Christian Fuchs.
67:47Corner, Tottenham Hotspur. Conceded by Christian Fuchs.
67:24Corner, Tottenham Hotspur. Conceded by Marc Albrighton.
64:18Foul by Toby Alderweireld (Tottenham Hotspur).
64:18Daniel Drinkwater (Leicester City) wins a free kick in the defensive half.
63:59Corner, Tottenham Hotspur. Conceded by Jamie Vardy.
63:58Attempt blocked. Toby Alderweireld (Tottenham Hotspur) header from the centre of the box is blocked. Assisted by Erik Lamela with a cross.
63:14Corner, Tottenham Hotspur. Conceded by Robert Huth.
63:13Attempt blocked. Harry Kane (Tottenham Hotspur) right footed shot from outside the box is blocked. Assisted by Erik Lamela.
61:49Corner, Tottenham Hotspur. Conceded by Daniel Drinkwater.
61:48Attempt blocked. Dele Alli (Tottenham Hotspur) left footed shot from the left side of the box is blocked.
61:44Attempt saved. Harry Kane (Tottenham Hotspur) right footed shot from the centre of the box is saved in the centre of the goal. Assisted by Erik Lamela.
60:28Attempt missed. Tom Carroll (Tottenham Hotspur) left footed shot from outside the box is close, but misses to the right.
58:48Dele Alli (Tottenham Hotspur) wins a free kick on the left wing.
58:48Foul by Daniel Drinkwater (Leicester City).
57:11Foul by Harry Kane (Tottenham Hotspur).
57:11Danny Simpson (Leicester City) wins a free kick in the attacking half.
55:50Corner, Tottenham Hotspur. Conceded by Christian Fuchs.
55:45Attempt blocked. Erik Lamela (Tottenham Hotspur) left footed shot from the centre of the box is blocked. Assisted by Ben Davies with a cross.
53:17Attempt blocked. Christian Eriksen (Tottenham Hotspur) right footed shot from outside the box is blocked.
52:17Harry Kane (Tottenham Hotspur) wins a free kick in the attacking half.
52:17Foul by Wes Morgan (Leicester City).
51:35Eric Dier (Tottenham Hotspur) wins a free kick in the defensive half.
51:35Foul by Wes Morgan (Leicester City).
51:07Corner, Leicester City. Conceded by Toby Alderweireld.
51:05Attempt blocked. Daniel Drinkwater (Leicester City) right footed shot from outside the box is blocked.
50:32Corner, Leicester City. Conceded by Harry Kane.
50:31Attempt blocked. Jamie Vardy (Leicester City) right footed shot from the centre of the box is blocked. Assisted by Shinji Okazaki.
49:54Corner, Leicester City. Conceded by Kyle Walker.
49:52Attempt blocked. Daniel Drinkwater (Leicester City) right footed shot from outside the box is blocked. Assisted by Christian Fuchs.
49:21Corner, Leicester City. Conceded by Jan Vertonghen.
48:24Foul by Harry Kane (Tottenham Hotspur).
48:24Riyad Mahrez (Leicester City) wins a free kick on the right wing.
47:07Foul by Erik Lamela (Tottenham Hotspur).
47:07Daniel Drinkwater (Leicester City) wins a free kick in the attacking half.
46:08Corner, Tottenham Hotspur. Conceded by Danny Simpson.
45:00Second Half begins Tottenham Hotspur 0, Leicester City 0.
45:00 +1:01 Half timeHalf Time First Half ends, Tottenham Hotspur 0, Leicester City 0.
45:00 +0:04Erik Lamela (Tottenham Hotspur) wins a free kick in the defensive half.
45:00 +0:04Foul by Christian Fuchs (Leicester City).
44:55Foul by Harry Kane (Tottenham Hotspur).
44:55Daniel Drinkwater (Leicester City) wins a free kick on the right wing.
41:10Foul by Ben Davies (Tottenham Hotspur).
41:10Riyad Mahrez (Leicester City) wins a free kick on the right wing.
39:51Corner, Tottenham Hotspur. Conceded by Wes Morgan.
39:27Corner, Tottenham Hotspur. Conceded by Danny Simpson.
38:37Offside, Leicester City. N'Golo Kanté tries a through ball, but Jamie Vardy is caught offside.
37:26Attempt blocked. Kyle Walker (Tottenham Hotspur) right footed shot from outside the box is blocked. Assisted by Harry Kane.
34:32Attempt blocked. Dele Alli (Tottenham Hotspur) left footed shot from the left side of the box is blocked.
33:59Dele Alli (Tottenham Hotspur) wins a free kick on the left wing.
33:59Foul by Danny Simpson (Leicester City).
31:33Dele Alli (Tottenham Hotspur) wins a free kick in the attacking half.
31:33Foul by Wes Morgan (Leicester City).
30:03Attempt saved. Christian Eriksen (Tottenham Hotspur) right footed shot from outside the box is saved in the bottom right corner. Assisted by Harry Kane.
29:50Corner, Tottenham Hotspur. Conceded by Daniel Drinkwater.
29:44Attempt blocked. Toby Alderweireld (Tottenham Hotspur) right footed shot from outside the box is blocked. Assisted by Eric Dier.
27:38Hand ball by Harry Kane (Tottenham Hotspur).
25:55Corner, Leicester City. Conceded by Tom Carroll.
25:24Corner, Leicester City. Conceded by Hugo Lloris.
25:18Attempt saved. Daniel Drinkwater (Leicester City) right footed shot from outside the box is saved in the bottom right corner. Assisted by Shinji Okazaki with a headed pass.
24:36Foul by Christian Eriksen (Tottenham Hotspur).
24:36Daniel Drinkwater (Leicester City) wins a free kick on the left wing.
22:19Attempt missed. N'Golo Kanté (Leicester City) right footed shot from the right side of the box is close, but misses the top right corner.
21:20Tom Carroll (Tottenham Hotspur) wins a free kick on the right wing.
21:20Foul by Daniel Drinkwater (Leicester City).
20:12Foul by Ben Davies (Tottenham Hotspur).
20:12Riyad Mahrez (Leicester City) wins a free kick on the right wing.
17:22Attempt missed. Shinji Okazaki (Leicester City) left footed shot from the centre of the box misses to the left. Assisted by Jamie Vardy.
15:00Attempt blocked. Erik Lamela (Tottenham Hotspur) left footed shot from the left side of the box is blocked. Assisted by Dele Alli.
14:20Offside, Tottenham Hotspur. Dele Alli tries a through ball, but Erik Lamela is caught offside.
13:05Attempt missed. Eric Dier (Tottenham Hotspur) right footed shot from outside the box is too high. Assisted by Harry Kane.
11:28Attempt missed. Toby Alderweireld (Tottenham Hotspur) header from the centre of the box is too high. Assisted by Erik Lamela with a cross following a corner.
11:01Corner, Tottenham Hotspur. Conceded by Christian Fuchs.
10:33Corner, Tottenham Hotspur. Conceded by Kasper Schmeichel.
10:32Attempt saved. Toby Alderweireld (Tottenham Hotspur) header from the centre of the box is saved in the top left corner. Assisted by Erik Lamela with a cross.
10:05Corner, Tottenham Hotspur. Conceded by Christian Fuchs.
5:28Attempt missed. Dele Alli (Tottenham Hotspur) right footed shot from outside the box is close, but misses to the right. Assisted by Christian Eriksen.
4:25Offside, Tottenham Hotspur. Erik Lamela tries a through ball, but Harry Kane is caught offside.
2:12Corner, Tottenham Hotspur. Conceded by N'Golo Kanté.
1:44Attempt saved. Christian Eriksen (Tottenham Hotspur) left footed shot from outside the box is saved in the centre of the goal. Assisted by Erik Lamela.
0:00First Half begins.
0:00Lineups are announced and players are warming up.
Live data and text provided by our data suppliers
