Wenger insisted: "It is still too early to make any conclusions about our season but I know we can qualify on Tuesday because we have the quality to do it.
"We have made progress compared to last season because we have been challenging for the title right from the start and we are in the last eight in the Champions League.
"The young players have done remarkably well and carried the team. Now we need to prepare physically and mentally for Tuesday.
"This team have given everything against a very good Liverpool defence."