The Spurs keeper began by apologising to the thousands of Tottenham fans who attended the game after a horror night in enemy territory. He also said that the game plan they prepared was very different to the one they executed at Arsenal.
He told 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."
Vicario did appeal that Eze's first goal should have been ruled out as a couple of Arsenal players were in his eyeline and were offside. But he later said that it would not have mattered to the scoreline.
The 29-year-old added: "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."
Tottenham boss Frank said he felt confident going into the north London derby but what he got was an "extremely bad" performance. He said he tried to replicate the tactics they deployed in their narrow UEFA Super Cup loss to Paris Saint-Germain in August but these two displays were like night and day.
He told BBC Radio 5 Live: "It's extremely painful to stand here after an extremely bad performance. Against the worst team we could put a bad performance in against. It was the perfect storm. I think especially first half we lacked the ability to have pressure and get close to them and be aggressive enough in the duels. We had to absorb to much pressure throughout the first half. In the second half we got a little bit better but nowhere near the level we want.
"That's an extremely hard defeat to take. We are all emotional and frustrated and need to look at it with calm heads. I was very confident going into the game that we could be competitive and we weren't, which was disappointing. We tried to do something different that was very successful against PSG. Today it wasn't and I always take responsibility for my decisions and then when it doesn't go the way we want it to go, that's on me. We changed it at half-time but I am 1000% sure that no matter what formation you play if you don't win enough duels or are aggressive enough, it doesn't matter what formation you play."