Son Heung-Min converted a late penalty to condemn Southampton to a 2-1 defeat at Tottentham on Wednesday night.
Danny Ings gave Southampton a deserved lead on 30 minutes after the visitors failed to grab an advantage following a sublime double-save from Hugo Lloris.
Inside of 120 seconds, Lloris had denied Mohammed Salisu’s header before pushing aside Che Adam’s follow-up volley from point-blank.
But Ings beat the keeper after turning in James Ward-Prowse’s free-kick as he ran across the box with the ball bouncing off the post and into the net.
Spurs drew level off the foot of former Saints man Gareth Bale, who saw the ball break out wide to the winger before he bent a left-footed effort around Alex McCarthy to make it 1-1 on the hour mark.
Son thought he gave Spurs the lead, but his goal was called back by VAR after Lucas Moura was deemed to have been in line of sight of McCarthy.
The South Korean, however, made it 2-1 from the spot after Sergio Reguilon was brought down on the edge of the area by Moussa Djenepo.
Upon a VAR check, Reguilon was considered to be inside the area and Son smashed his penalty past McCarthy.
Tottenham (4-2-3-1): Lloris; Reguilon, Dier, Alderweireld, Aurier; Ndombele (Winks 73), Hojbjerg; Heung-Min, Lo Celso (Lamela 79), Bale; Moura
Unused subs: Hart (GK), Sissoko, Alli, Sanchez, Bergwijn, Vinicius, Tanganga
Goals: Bale (60), Son (PEN 90)
Bookings: Ndombele (43), Dier (90+5)
Southampton (4-4-2): McCarthy; Salisu, Vestergaard, Bednarek, Walker-Peters; Tella (Redmond 84), Armstrong, Ward-Prowse, Walcott (Djenepo 67); Ings (Diallo 57), Adams
Unused subs: Forster (GK), Stephens, Minamino, N’Lundulu, Ferry, Jankewitz
Goals: Ings (30)
Bookings: Djenepo (87)