The Gunners weren't at the races in the first-half.
"There's a great spirit in the team. There's great quality in the team. The team has to believe more in the quality we have. You could see with 10 men against Man City and today again that we can be dominant in the games. We have to [do that] from the start," argued Wenger.
On critics saying the team can't challenge for titles, he added: "I wouldn't like to comment on every opinion of people. What is important is that we focus on giving our best in the next game and our next game is on Wednesday."