Tottenham interim manager Igor Tudor, speaking to BBC Radio 5 Live: "Difficult start against a team who is now in this moment.
"A different level of physical state of mind, so congratulations to them. They were much better and they deserve this win. I got the spirit which we wanted to do things, but it was not enough. It is nice to understand where we are in this moment.
"It showed me on Tuesday that we need to work hard and work hard and seriously.
"Now in this moment, the team is full of problems. The only key is to work on the training day by day and be humble. We need to be more aggressive - we need to be more compact. These are the keys.
"You understand the gap with the mental sharpness of one team and other teams. This is a thing we need to change. I saw players available to do this, but we need more time to do this.
"Thinking about relegation doesn't bring you anything to anybody."
Tottenham defender Micky van de Ven, speaking to Sky Sports: "Arsenal were the better team. We were still in the game at 1-1 but after the second half, they scored straight away and then it was really difficult.
"We could do the press a bit better. We pressed high but Arsenal came out of it. It's something we need to work on. They were the better team today.
"It's a risk when you go man for man and if one man is late then you're going to be open but when you win the ball high, there are so many options for us. But on the opposite, when they come out, it's a big risk."
On Igor Tudor: "He is on us all week. Every day we worked on it. It's his first week and he wants to help us in every way. We have all the week to prepare for Fulham.
"We need to win the games. Step by step. We play Fulham now."