Steven Davis scored twice as Southampton came from behind to beat second-placed Tottenham.
Home forward Son Heung-min chased a lost cause for the opener, gliding past Fraser Forster and coolly tucking the ball into an open net.
The visitors equalised through Davis, who slotted in under Hugo Lloris following Dusan Tadic’s cut-back.
Spurs’s Jan Vertonghen had a header cleared off the line, before midfielder Davis stroked in the winner.
Substitute Nacer Chadli could have saved a point for the hosts deep in stoppage time, but his poked effort was kept out by the big frame of Forster.
Having challenged for the Premier League title for most of the season, Tottenham now lie 10 points adrift of champions Leicester and are hanging on to second spot, three points ahead of local rivals Arsenal.
More to follow.
Relive the match from White Hart Lane