Mauricio Pochettino hails Harry Kane as one of the best strikers in the world
Harry Kane rescued Tottenham with a dramatic late double and left boss Mauricio Pochettino proclaiming: "He's back!"
England striker Kane, fit again after seven weeks out with ankle ligament damage, struck twice in the final two minutes as Spurs came from behind to stun West Ham 3-2.
The 23-year-old, sent back from England duty last weekend in order to build up his fitness, tucked in an 89th-minute cross from Son Heung-min to equalise.
Then, as the clock moved into stoppage time, Kane coolly tucked away a penalty after Havard Nordtveit fouled Son to secure Tottenham's first win in eight matches.
"He's back!" beamed Pochettino.
"He's one of the best strikers in the world. When you play without your main striker for 10 or 11 games it's tough for any team. He's a player who is very important for us.
"It wasn't ideal to have Harry on the pitch for 96 minutes, that's true, but it's difficult to take him off when you need to win the game.
"In the end we pushed him but now he's very happy with energy and that can help him recover."
Spurs' unbeaten record was in jeopardy after Michail Antonio headed West Ham into a first-half lead.
They equalised through youngster Harry Winks, who lashed in the rebound after Vincent Janssen's shot was blocked for a goal on his full Premier League debut.
But Manuel Lanzini put the Hammers back in front after Winston Reid was brought down in the area by Janssen.
However, Kane's late heroics meant more misery for West Ham, who remain just a point above the relegation zone.
That misery deepened yet further during the six minutes of stoppage time after stand-in skipper Reid was sent off for a second booking.
"You can imagine it's very difficult to take this kind of defeat in a derby when there are four minutes to go and you're a goal up and you're thinking about killing the game," said manager Slaven Bilic.
"We had really good opportunities to kill the game off but unfortunately it wasn't to be.
"For the penalty, Son did a really good move and our player went down a little bit too quickly.
"Our penalty, to be fair, I didn't see. All I have seen is their penalty after the game and it was a penalty, it was a very clever move from Son.
"And the foul from Reid is a big blow, because he was excellent."