Son Heung-min scored four goals in a stunning display as Tottenham secured their first Premier League win of the season by coming from behind to thrash Southampton.
The South Korea international combined with Harry Kane for all four of his goals as Spurs took control after Danny Ings' fine finish from a tight angle had given Southampton a first-half lead.
Son's first came on the stroke of half time when he raced on to Kane's pass before driving across Alex McCarthy and into the back of the net.
The pair opened up Southampton again as Spurs took the lead soon after the restart, Kane sending Son through one-on-one and the forward made no mistake.
The hosts struggled to deal with Son's superbly-timed runs behind the defence and he duly got his third, racing on to Kane's clipped pass before slotting in.
Kane then provided his fourth assist of the day with a brilliant cross for Son, who coolly chipped McCarthy, before Kane got in on the scoring himself when he stabbed in from close range after Erik Lamela's shot had been pushed on to the post.
Ings converted a penalty in stoppage time but it was scant consolation as Southampton slumped to their third consecutive defeat in all competitions.
Alli absent as Son puts on super show
This was a much-needed win for Tottenham after a difficult start to the season in which they were beaten by Everton on the opening day before scraping past Bulgarian side Lokomotiv Plovdiv in Europa League qualifying in midweek.
A significant reason for their defeat to the Toffees was down their lack of creativity in midfield - with Dele Alli paying the price in that game for a disappointing display by being taken off at half-time.
Left out of the midweek Europa League tie, Alli was again omitted from the side for the trip to St Mary's, with Jose Mourinho saying his absence was down to having "too many players" in certain positions.
For a long time in this game, Mourinho's bold move looked destined to be the talking point as Tottenham sorely lacked creativity in midfield.
Aside from a couple of disallowed goals for Kane, the visitors barely troubled the Southampton defence and even when they did manage to score right before the half-time whistle it came from Tottenham's only shot and only touch in Southampton's box in the entire first half.
But after the break, Son and Kane took centre stage, taking advantaging of Southampton's high line and slow defence as they demonstrated an understanding that seemed almost telepathic at times.
Kane assisted just two league goals in the entirety of last season but almost every pass he provided in the second half of this game was to set up a Son goal as he became the first player in Premier League history to assist a single team-mate four times in the same match.
With the return of Gareth Bale, Tottenham have the potential for a front three that could rival the very best in the world.
More to follow.
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Southampton
Squad number1Player nameMcCarthy
Squad number2Player nameWalker-Peters
Squad number5Player nameStephens
Squad number35Player nameBednarek
Squad number3Player nameBertrand
Squad number17Player nameArmstrong
Squad number8Player nameWard-Prowse
Squad number6Player nameOriol Romeu
Squad number12Player nameDjenepo
Squad number10Player nameAdams
Squad number9Player nameIngs
Squad number7Player nameLong
Squad number20Player nameSmallbone
Squad number23Player nameTella
Tottenham Hotspur
Squad number1Player nameLloris
Squad number2Player nameDoherty
Squad number6Player nameD Sánchez
Squad number15Player nameDier
Squad number33Player nameDavies
Squad number5Player nameHøjbjerg
Squad number8Player nameWinks
Squad number28Player nameNdombele
Squad number27Player nameLucas Moura
Squad number10Player nameKane
Squad number7Player nameSon Heung-Min
Squad number11Player nameLamela
Squad number18Player nameLo Celso
Squad number23Player nameBergwijn
Line-ups
Southampton
1McCarthy2Walker-Peters5StephensBooked at 68mins35Bednarek3BertrandBooked at 44mins17ArmstrongSubstituted forTellaat 68'minutes8Ward-Prowse6RomeuBooked at 5minsSubstituted forSmallboneat 55'minutes12Djenepo10AdamsBooked at 39minsSubstituted forLongat 80'minutes9IngsSubstitutes
4Vestergaard7Long14Obafemi20Smallbone23Tella29Vokins44ForsterTottenham
1Lloris2DohertyBooked at 79mins6D Sánchez15Dier33Davies5Højbjerg8Winks28NdombeleBooked at 45minsSubstituted forLo Celsoat 45'minutesBooked at 90mins27Lucas MouraSubstituted forLamelaat 61'minutes10KaneSubstituted forBergwijnat 84'minutes7Son Heung-MinSubstitutes
4Alderweireld11Lamela12Hart17Sissoko18Lo Celso23Bergwijn24AurierLive Text
Match ends, Southampton 2, Tottenham Hotspur 5.
90'+5'
Second Half ends, Southampton 2, Tottenham Hotspur 5.
90'+4'
Corner, Tottenham Hotspur. Conceded by Jan Bednarek.
90'+4'
Attempt blocked. Giovani Lo Celso (Tottenham Hotspur) left footed shot from outside the box is blocked. Assisted by Steven Bergwijn.
90'+3'
Giovani Lo Celso (Tottenham Hotspur) is shown the yellow card.
90'+3'
Moussa Djenepo (Southampton) wins a free kick on the left wing.
90'+3'
Foul by Giovani Lo Celso (Tottenham Hotspur).
90'+2'
Foul by Shane Long (Southampton).
90'+2'
Eric Dier (Tottenham Hotspur) wins a free kick in the defensive half.
90'+2'
Nathan Tella (Southampton) wins a free kick in the defensive half.
90'+2'
Foul by Ben Davies (Tottenham Hotspur).
90'
Goal! Southampton 2, Tottenham Hotspur 5. Danny Ings (Southampton) converts the penalty with a right footed shot to the centre of the goal.
88'
VAR Decision: Penalty Southampton.
87'
Penalty conceded by Matt Doherty (Tottenham Hotspur) with a hand ball in the penalty area.
87'
Nathan Tella (Southampton) wins a free kick on the right wing.
87'
Foul by Steven Bergwijn (Tottenham Hotspur).
86'
Attempt saved. James Ward-Prowse (Southampton) right footed shot from outside the box is saved in the top right corner.
85'
Nathan Tella (Southampton) wins a free kick in the attacking half.
85'
Foul by Steven Bergwijn (Tottenham Hotspur).
84'
Substitution, Tottenham Hotspur. Steven Bergwijn replaces Harry Kane.