Leandro Trossard's excellent 90th-minute finish for Brighton in a 1-0 win at Tottenham secured a remarkable north London double for the Seagulls, a week after they beat Arsenal at the Emirates Stadium
Graham Potter's side frustrated Spurs throughout the contest and then Trossard showed some skill in the box to make room to prod past Hugo Lloris to grab Brighton's first win at Tottenham since 1981
Spurs had scored at least twice in each of their previous seven but failed to have a single shot on target over the 90 minutes, with Heung-Min Son denied by excellent blocks from Joel Veltman and Trossard in the second half
 No outfield starter who completed 90 minutes had fewer touches than isolated Harry Kane (27)
Antonio Conte's team had gone into the game hoping to win their fifth match in a row and move six points clear of rivals Arsenal in fourth
 However,  and were bumped into sixth place, with  making them now Spurs' nearest challengers, three points back
The tight contest at the Tottenham Hotspur Stadium could have played out quite differently had referee Craig Pawson seen a couple of instances differently in the first half
 A below-his-best Dejan Kulusevski was fortunate not to connect when he swung an elbow at Marc Cucurella - that would have earned him more than the yellow he received
Meanwhile, Enock Mwepu was walking a tightrope after going into the book himself for a trip on Sergio Reguilon and escaped a second yellow despite being penalised for a high boot against Ben Davies and stepping on Pierre-Emile Hojbjerg's foot with a clumsy challenge
But Brighton got to half-time, where they replaced Mwepu, and at the end of another convincing 45 minutes after the break they found their moment of magic in the final minute through Trossard to make it back-to-back wins
It is some turnaround from Brighton, who had taken just one point from their previous seven before going to Arsenal last Saturday but they always looked comfortable against a below-par Spurs
Veltman made a good tackle on Harry Kane early on but Brighton had the best moments in the opening period, with the Netherlands international himself denied at the other end after Mwepu's shot from a corner was blocked
 Rodrigo Bentancur then had to be sharp to prevent Alexis Mac Allister turning in from a flicked-on corner
After a scrappy end to the half, when the focus was on Kulusevski and Mwepu, Son looked the most likely to break the deadlock for the hosts but was twice denied in the space of seven minutes before Bentancur shot narrowly wide
However, Brighton continued to pose a threat of their own, with Mac Allister shooting over when well placed and Tariq Lamptey firing a tame one at Lloris from a good position
The impressive visitors got their reward for pushing forwards late on when Trossard's dummy did for Eric Dier and his poked finish flew past Lloris to deal another blow to a top-four chasing side from north London
"For sure it's not a good result for us
 A lesson we can learn today is that there are games that if you're not able to win, you're not to lose
 It was very clear that today wasn't our day
 I understand we want to try to get three points before our other rivals for the race for the Champions League but sometimes we need to feel
"The game was very difficult, a tactical game from both sides
 Brighton were very good to close every space
 We moved the ball slowly
 We are able to do much better than today
 Maybe a more fair final result was a draw but Brighton played a good game, well organised with a good manager
 If you win against Arsenal and Tottenham away it means the team is a good team
 We started very slowly
 In my opinion we can do much better than we showed today
""It feels better than Arsenal
 I thought the performance was a step up
 The players were incredible, with work rate and discipline
 We had good organisation and attitude to run and defend and be brave when we had the ball as well
 It wasn't a smash and grab game
"We were playing against a lot of world class players and a team in a good moment so we had to be good today
 40 points with six games to go
 Not so bad considering it was Armageddon three games ago! It was only fair if we beat Arsenal; we have to go to Spurs and beat them
"Spurs head to Brentford for the  at 5
30pm - live on  - while Brighton travel to league leaders Manchester City on Wednesday at 8pm
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