The result sees Arsenal move seven points clear of second place Manchester City at the top of the Premier League table. But it could've been more after City's defeat at Manchester United.
“At the end, it's another little step and the schedule is very, very demanding," said Arteta.
“We came two and a half days ago to play against Chelsea in the semi-final, they both made a huge effort. We have a game in three days against Inter Milan, then Man United, so yeah, reflect today and tomorrow we go again.”
“We came here to win the game, that's clear, and we needed the opportunities that we had."
On the performance, the manager continued: “We haven't managed that, so the word is disappointment. We haven't conceded anything, any single shot again and generated four massive chances with Martinelli with an open goal, with Declan Rice, Merino and then Bukayo Saka's header with an unbelievable save, and on top of that, a very clear penalty as well that has not been given.
“So after that, it’s pretty difficult for us because it's a team that is very well organised and very difficult to generate a lot of momentum throughout the game, so it's disappointing.”
Arteta also stated: “You need (to take chances), especially to open them up, especially the way that they played.
“We tried in many ways, we made changes, we tried to have more people in the last line, to have very creative players in and around the box. When you get into those moments, you have to make it happen if you want to win and we didn’t manage to get it done.”