Dele Alli continued his scintillating form in front of goal by heading a brace to give Tottenham a stirring 2-0 derby victory and halt Chelsea's record-equalling Premier League winning run of 13 matches.
Alli scored twice for the third Spurs game in succession, converting Christian Eriksen crosses either side of half-time as Antonio Conte's league leaders tasted defeat for the first time since September.
Chelsea's rampant march had previously been tested as they fell behind to Spurs at Stamford Bridge and City at the Etihad Stadium, but the excellent Alli ensured there would be no respite on this occasion.
Mousa Dembele strode through a succession of Chelsea challenges before his chipped pass ran a shade too far for Harry Kane, while Eriksen was afforded a couple of set-piece opportunities as Spurs increased the pressure.
Pedro – back in the Chelsea XI for Willian following suspension despite the latter's brace against Stoke City – was booked for bringing down Danny Rose and found himself embroiled in a heated exchange of views with Diego Costa after a counter-attack broke down.
Eriksen flashed a dipping drive just past the post in the 23rd minute and Costa blazed over from the edge of the box 10 minutes before half-time.
Chelsea goalkeeper Thibaut Courtois parried Eric Dier's back-post header after Gary Cahill was cautioned for hauling back Eriksen and the Denmark international rounded off a highly impressive first period by setting up the opener in stoppage time.
He was given room to float an impeccable cross towards Alli, who timed his run to leap and guide a header into the top right corner.
Spurs goalkeeper Hugo Lloris was seldom involved before the break but got down with a firm hand to keep out Costa two minutes after the restart, while Hazard squirted a header wide after the hosts failed to deal with Marcos Alonso's deep cross.
Once more, Alli emphatically showed him how it was done in the 54th minute.
Alli's clever movement and relentless running meant the evening never progressed beyond unpleasant for Chelsea's much-vaunted defence, although he was unable to extend his hot streak to eight goals in four games by claiming the matchball.
Tottenham comfortably closed out a victory to serve emphatic notice of their own title ambitions against the opponents who so relished ending them last time around.
Key Opta stats:
- The Blues conceded more goals to Dele Alli in this match (2) than they have conceded in their previous six Premier League away games combined (1).
- Chelsea have not won at White Hart Lane since a 4-2 victory in October 2012 (D2 L2 since).
- Tottenham Hotspur are unbeaten at White Hart Lane this season (W8 D2 L0); their longest unbeaten start to a Premier League season at home since 2000-01 (13 games).
- Spurs haven't lost a Premier League London derby at White Hart Lane under Mauricio Pochettino (W8 D4 L0).
- Tottenham scored with their only two shots on target in this match.
- Alli has equalled his goal tally (10) from 2015-16. He has managed to score this in 19 apps this season, compared to 33 last season.
- Spurs have never lost a Premier League match that Dele Alli has scored in (16 games – W12 D4 L0).
- The only midfielders to reach 20 Premier League goals quicker than Dele Alli (52 apps) are Rafael van der Vaart (44 PL apps) and Matt Le Tissier (50 PL apps)