Harry sinks the Blues
It's first blood to Tottenham in League Cup semi as Kane is spot on at Wembley
Harry Kane's VAR-assisted penalty saw Tottenham take a slim advantage after the League Cup semi-final first leg against Chelsea following a 1-0 win at Wembley.
Kane scored from the spot in the 26th minute after being scythed down by Kepa Arrizabalaga, with technology ruling the England striker had stayed onside in the build-up.
Kane had no problems converting from 12 yards to go fourth on the club's all-time list of scorers with 160, bagging in his sixth successive game.
It gave Spurs a win they perhaps did not deserve, though, as Chelsea, who twice hit the woodwork, but there will be no complaints as they registered a third successive victory over their London rivals for the first time since 1963.
Maurizio Sarri, though, will be confident his side will be able to turn the deficit around in the second leg at Stamford Bridge in a fortnight having performed far better than their 3-1 defeat at the national stadium six weeks ago.
Chelsea's defence were probably still having nightmares about Son, following the South Korean's devastating display in that league fixture in November, and they were given a reminder of that afternoon in the early exchanges.
First Son burst through and ended up on the floor after a tangle with Andreas Christensen before another foray carved out the first chance.
He caused panic down the right and the ball ended up with Kieran Trippier, whose cross was met by Kane's ambitious overhead kick that went straight at Arrizabalaga.
Arrizabalaga's next involvement led to Tottenham taking the lead in the 26th minute, after a lengthy intervention by VAR.
Kane was set clear by Toby Alderweireld's long ball over the top and play was allowed to continue despite the linesman intimating that he thought the England striker was offside.
Kane got to the ball first and was clattered into by goalkeeper. Referee Michael Oliver consulted VAR, who ruled that Kane was just onside and that he had been fouled.
It was the perfect use of the technology and unsurprisingly, the perfect spot-kick from Kane, who drilled into the bottom corner for his 160th goal for the club.
Chelsea were not happy about the decision but tried their best to get back into the game and only the woodwork denied them from equalising.
First N'Golo Kante hit the post as he turned Marcos Alonso's cross goalwards at the near post and then Callum Hudson-Odoi's deflected cross almost caught Paulo Gazzaniga out, but the Spurs goalkeeper backpedalled and tipped the ball on to the crossbar.
Sarri's men were putting up a far better show and after Arrizabalaga saved a Kane effort from distance, Gazzaniga was called into action at the other end, first denying Eden Hazard and then Kante.
Their best chance came just before the hour and they will wish it did not fall to Christensen as the defender, unmarked at the back post from a corner stabbed wide with the goal at his mercy.
Spurs, who were not helping themselves, were hanging on at times as Eden Hazard desperately tried to produce a moment of brilliance, but there was always a body in the way.
It was a frantic ending, but Spurs held on as it is all to play for at Stamford Bridge on January 24.