Mauricio Pochettino's side travelled to Brighton needing a result to bounce back after humiliation against Bayern Munich in the Champions League.
But, yet again, Spurs put in another embarrassing performance.
They fell behind within three minutes when Hugo Lloris' error gifted the Seagulls the lead.
He spilt Pascal Gross' cross to gift Neal Maupay a tap-in on the line and to make things even worse, the Frenchman fell awkwardly, breaking his arm before being stretchered off and taken to hospital.
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It was 2-0 before half-time, with Aaron Connolly scoring from close range after substitute goalkeeper Paulo Gazzaniga failed to deal with another shot.
The hosts put the game beyond any doubt with 25 minutes to play, as Connolly buried another effort.
This defeat to Brighton was the latest in a long line of terrible results that perhaps suggest Spurs are no longer a force under Pochettino.
The first sorry statistic dates all the way back to January 2019 - the last time Tottenham won a game away from home in the Premier League.
That was against Fulham. But since then, they've played 10 fixtures away from north London, losing eight and drawing two. That's two points from a possible 30.
It's simply not good enough for a team chasing Champions League football.
Three wins, two draws and three defeats from their opening eight games this season suggests that finishing in the top four will be a real challenge.
On top of that, Pochettino suffered another embarrassing away loss to Colchester in the Carabao Cup - Spurs crashed out in the third round of the competition on penalties in September.
Last week also saw the humiliating 7-2 defeat at home to Bayern Munich. That game broke all kinds of unwanted records.
It was their worst home defeat in 137 years of the club's history and the joint-heaviest defeat Pochettino has suffered in his own career.
Are Spurs slipping under their Argentine manager? The stats and results suggest so. Dark days may lie ahead.News Now - Sport News