Tottenham enjoyed a bright start to the game and had the edge in terms of possession in the first half but struggled to break down the Arsenal defence which remained compact and well-organised in the first half.
Spurs secured all three points at Wembley in Saturday's lunchtime kick-off courtesy of a second half Harry Kane header, but Arsenal substitute Lacazette spurned two glorious opportunities in the closing stages of the game which could have produced a different outcome for Arsene Wenger's side. "I believe we can finish second". We missed opportunities on the counter-attack.
"Once they scored you could see we were wobbling and they could have scored more but in the last 10 minutes we should have come back to 1-1".
"I believe that we had opportunities, unsafe situations that we didn't transform into opportunities". However, his game was not all smooth-sailing. In football if you don't kill the game you will concede chances and suffer.
"Sometimes you need that trophy or a big win against at Real Madrid or top six side to realise how good you are".
Arsenal are next in Europa League action on Thursday night when they travel to Sweden to face Ostersunds FK.
Hard for Arsenal to finish top four after Tottenham defeat, says Wenger
Wenger said: "We have to fight as long as we have a mathematical chance". We played fantastic football, we created a lot of chances. There was more at stake than just the derby, I said that before the game, that's why it's so disappointing to lose the game the way we lost it.
At the post-match press conferences, Pochettino took issue with why he preferred Davinson Sanchez to fit-again Toby Alderweireld.
The Gunners' final ball was far too often letting them down on their rare forays forward, with Mkhitaryan particularly guilty of some poor crossing from promising positions, although Dele Alli likewise failed to pick out Eriksen at the end of a promising Spurs move.
"No, I don't think they lacked the hunger to defend", Wenger said. I'm not a great fan of qualifying for the Europa League through the Champions League.
In fairness to Morgan, he didn't take today's 1-0 defeat and Kane's goal lying down, although what sort of response could he legitimately bring to the table!