Brighton registered an overdue first Premier League home win of the season by deservedly seeing off an out-of-sorts Tottenham team missing star striker Harry Kane.
Leandro Trossard gave the relegation-threatened Seagulls a major boost in the scrap for survival by ending his 19-game goal drought to earn a 1-0 success.
Jose Mourinho’s men remain six points adrift of the Champions League places on the back of an alarming two league wins from nine matches.
Substitute Carlos Vinicius came closest to snatching a point for the visitors, while Gareth Bale – handed a rare start in Kane’s place – was ineffectual before being replaced in the 61st minute.
Pascal Gross was afforded time and space in the visitors’ box following neat interplay from Neal Maupay and Alexis Mac Allister before his effort with the outside of his right boot rebounded off the base of the left post.
Spurs failed to heed the warning and goalkeeper Hugo Lloris – who had become only the 25th player to make 350 appearances for the north London club – was soon picking the ball out of his net.
Gross was once again heavily involved, playing a delightful one-two with Mac Allister on the right-hand side before cutting the ball back for the onrushing Belgian Trossard to sweep home his first goal since September at the near post.
Increasingly influential midfielder Mac Allister was pulling the strings and he, Maupay and captain Lewis Dunk were among those to threaten a second before the break.
A wayward Steven Bergwijn strike was all the below-par visitors mustered in a dismal opening 45 minutes and they would have been grateful not to have fallen further behind as they trudged down the tunnel.
The Seagulls continued to have the better of the play and remained the more dangerous after half time.
France keeper Lloris was required to keep out deflected efforts from Ben White and Mac Allister.
Seagulls keeper Robert Sanchez was finally called into meaningful action 15 minutes from time when he superbly clawed away a stinging, goal-bound effort from Vinicius.
Brighton should have been home and dry late on but substitute Connolly somehow directed his shot straight at Alderweireld with the goal gaping after being teed up Gross. The remarkable miss mattered little in the end as Potter’s men survived a nervy finish.
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