Tottenham boosted their hopes of top-four Premier League finish with a London derby win over Chelsea that increases the pressure on Blues boss Graham Potter.
Oliver Skipp's thumping 20-yard effort just after the interval put the hosts in command and their victory was sealed when Harry Kane turned home Eric Dier's knock-down late on.
While the majority of the Tottenham Hotspur Stadium were in celebratory mood in the final stages, Kane's goal saw visiting supporters head for the exit as Chelsea's recent woes continued.
The Blues have now won just two of their previous 15 top-flight matches and sit 14 points off the Champions League places.
This result is likely to place more scrutiny on Chelsea's expensively assembled squad - with British record signing Enzo Fernandez at fault for the Spurs' opener - as well as Potter, who recently outlined the toll that criticism has placed on his family and mental health.
Meanwhile, things are on the up for Spurs, who have won four of their past five league matches and now sit fourth in the table, four points above fifth-placed Newcastle, who have two games in hand.
Overall the hosts merited the three points and had come closest to breaking the deadlock in the early stages when Pierre-Emile Hojbjerg saw his deflected effort go past a motionless Kepa Arrizabalaga but hit the right-hand post.
The biggest talking point of an underwhelming first half was referee Stuart Attwell's initial decision to send off Chelsea's Hakim Ziyech after a melee that saw visiting forward Kai Havertz and home defender Emerson Royal booked.
Having administered yellow cards to those players, Attwell dismissed the Morocco winger for a raised arm on the advice of his assistant referee before downgrading it to a yellow after the video assistant referee recommended that the official review his decision.