Striker Danny Welbeck believes Arsenal should have done better in the offensive department during their 2-1 Premier League defeat by Tottenham Hotspur.
The Gunners got off to a flying start after Mesut Ozil put them in front in the 11th minute of the game but failed to take advantage of the lead as they succumbed to two second-half goals by striker Harry Kane.
"The boys are devastated to lose the game," the striker is quoted as saying by the club's official website.
"It's not nice for us to come here and lose the derby, it's a massive game for the whole club, the fans and it's something that we're really disappointed about.
"We came here with good confidence and we thought that we could get the three points today. We went ahead, started well and then tailed off towards the end.
"As a team, going forward we didn't do as well as we could have done and they took advantage of that.
"It was really disappointing and on a personal level it was difficult for me to get back in the swing of things after being out for a few weeks."