Tottenham debutant Eric Dier struck in injury time to secure a 1-0 opening day derby win at West Ham in the Premier League.
England Under-21 defender Dier, a close-season acquisition from Sporting Lisbon, found himself on the end of Harry Kane's measured through-ball to round goalkeeper Adrian and coolly convert.
A win looked unlikely for Tottenham, playing under new Head Coach Mauricio Pochettino, when Kyle Naughton was sent off for handball in the 29th minute, although Mark Noble missed the resulting penalty.
It was ten-a-side when West Ham defender James Collins collected a second booking in the 63rd minute and both teams pressed in a frantic finale before Dier had the final word.
West Ham's board publicly stated in May that manager Sam Allardyce is under instructions to play more a more expansive attacking game this term.
But Tottenham laboured during the first half at Upton Park as they were bombarded by crosses from set-pieces and open play.
New attacking recruits Enner Valencia and Mauro Zarate took their places on the home bench, leaving the familiar face of Carlton Cole to lead the line and he curled an early effort over at the near post.
Cole should have done better when he failed to control a 16th-minute Stewart Downing cross and further deliveries from the former Aston Villa and Liverpool winger caused persistent problems for Tottenham.
Cheikhou Kouyate - one of two West Ham full debutants alongside an assured Aaron Cresswell at left-back - and Ricardo Vaz Te headed narrowly off target from Downing deliveries.
Defending corners was also proving highly problematic for Tottenham and, when Naughton blocked with his arm as Kevin Nolan looked to turn home a set-piece knockdown, referee Chris Foy consulted with his assistant and pointed to the spot.
The subsequent red card sparked jubilation at Upton Park, but it was short-lived as the usually reliable Noble stroked his penalty wide.
Aaron Lennon shot over as Spurs offered a rare attacking threat on the break in the 41st minute and there was still time for Kouyate to send a free header into Hugo Lloris' grateful arms before the break - Downing once again the provider.
Downing opted for a more direct route with a stinging 53rd-minute drive that Lloris kept out sharply.
Cresswell made a vital 58th-minute challenge to stop Lennon from converting Danny Rose's low cross at the back post during a disjointed period for the home side, when their numerical edge was not overly apparent.
It was one that did not exist five minutes later when Collins clumsily felled Emmanuel Adebayor to receive his marching orders.
A pitch invader ran on to lob into Adrian's arms as Spurs waited to take the resulting free-kick and it served to warm up the West Ham goalkeeper for an impressively athletic stop from substitute Andros Townsend.
However, Adrian was rooted to the spot when the England winger flashed past his far post with 20 minutes to play, before Noble burst through but fired at Lloris, unable to atone for his earlier error.
The French goalkeeper then displayed razor-sharp reactions to deny Downing from point-blank range, paving the way for Dier's last-gasp winner.
West Ham United manager Sam Allardyce: "You know that this game will sometimes bite you when you don't finish off the opposition when you've created so many chances. We paid the ultimate price in the last minute because we didn't secure the victory well before Tottenham got their goal. When Tottenham did get their goal, it was with their last chance and probably their only clear-cut chance in the whole game.
"You've got to be two goals up because then we could have got away with it and still taken the three points. But because we've not scored the penalty, because we've had 20 attempts at goal and haven't scored and because we allowed the opposition to equal it up to ten against ten, they were the three most important factors in why we have lost this game. It's a real shame based on the overall game and the efforts the players have given."
Tottenham Hotspur head coach Mauricio Pochettino: "We are very happy, so congratulations to players and fans. They gave unbelievable effort. The support was unbelievable today as well. We never gave up. We stayed calm, we believed in our skill and our team, but we kept our offensive play. We reorganised our system and carried on. This is football and I am very happy to get three points today.
"He [Dier] is still young, but he showed in the game last week [friendly against Schalke] and today a great performance. He is calm and has quality potential. We need to give him opportunities to play, but we must be careful as he is young, but today he was the hero."
"He doesn't play like a centre-forward in training. I am very pleased for him. It was his debut and he has, like all of the team, put in a great performance. This is our philosophy - to believe. We always have to believe for 90, 95 minutes in a game."
|13 Dec 2014||v Sunderland (A)|
|30 Aug 2014||v Southampton (H)|
|29 Nov 2014||v Newcastle (H)|
|07 Dec 2014||v Swansea (H)|
|08 Nov 2014||v Aston Villa (H)|
|18 Oct 2014||v Burnley (A)|