Leicester ended the Gunners winning streak in the Premier League.
A win for Arsenal would have moved them to sixth spot three points behind Manchester United.
Mikel Arteta was extremely proud of the way Arsenal performed against Leicester City on Tuesday night but wants his team to learn how to put games to bed.
The Gunners were held to a 1-1 draw by the Foxes at the Emirates Stadium as Jamie Vardy’s 84th-minute strike cancelled out Pierre-Emerick Aubameyang’s first-half opener after Eddie Nketiah’s red reduced the hosts to 10 men with 15 minutes left to play.
And, after the match in north London, Arteta bemoaned Arsenal’s missed chances, adding that ‘we should have been three or four-nil up’.
A win for Arsenal would have moved them to sixth spot, three points behind Manchester United.
Speaking to Sky Sports, the Spaniard said: "I am extremely proud of our team, the way we played against this kind of opposition. We should have been three or four-nil up. With the red card, you have to know he is a young kid. Leicester should play with 10 men after 42 minutes. For a challenge between the 40th and 45th minute.
On the referee using the monitor to decide on the red card, he replied: "I don't understand the rules. I never see a referee check any of the images. But I can do nothing now, it is the rules. We lost two points, we lost Eddie and we will see now for how many games. But we go to Spurs now and try to win three points.
On his side's all-round performance, Arteta said: "They played tremendously well. The recovery time is difficult but you can see the effort the players are putting in. I am extremely proud of the players. We have to learn as well. When you have this kind of opposition and you are on top you have to kill them when you can."