Tottenham manager Thomas Frank speaking to BBC Match of the Day: "Very difficult afternoon. Bad performance. It's extremely painful to stand here after that game. We can only apologise to the fans for not performing better. I was very confident we could be competitive today. We weren't. That we need to look at with a cool and calm head and work out what we need to change.
"We didn't succeed to be aggressive enough, and we didn't win the duels.
"One thing for sure is that in hindsight, everything is much easier. I take always the full responsibility for the performances. That I need to look back to. We changed things at half-time, it was a tiny bit better, but the game was already over at 3-0. It doesn't matter what system we play if we don't win our duals.
"No matter how painful it is, and of course, this is the most painful defeat of the season, there are things we can take out of this game."
Goalkeeper Guglielmo Vicario to Sky Sports: "A very bad night for us. First of all, we have to apologise to the people that support us every day. They expected us to fight, and today we didn't fight. That's not negotiable to do in football in this level.
"It's a tough night, a very bad defeat, but we have to stick together. We have a big night on Wednesday but we need to stick together. Tonight we didn't show the things we are normally capable of.
"The emotions are high, but we need cool heads and apologise to the people that support us and have travelled today.
"I think we waited too much to get into the game. We were too passive. The game plan we prepared was different. Today we didn't fight. We have to apologise first of all for this. But we have to stick together and move on because on Wednesday we have a big night."
On Arsenal's second goal: "I think the way the game went it wouldn't have changed anything. There were three people in front of me so of course they impacted me. But we didn't lose the game for that."