Wenger was speaking to shareholders at yesterday's AGM.
Referring to the summer departure of Cesc Fabregas and Samir Nasri, Wenger said: "We lost two world-class players, but do not judge too quickly the players we bought. They are top players. We had a very difficult environment at the start of the season.
"Where we will finish at the end of the season, I don't know, but the players are ready to have a go. I'm personally convinced that we have a chance to qualify again (for the Champions League). The scepticism surrounding this club is too high. Trust us, this team have quality and a fantastic attitude, this team will fight."