Arsenal midfielder Mathieu Flamini has insisted that it would be "crazy" to suggest that the Gunners will not improve in the second half of the season.
Arsene Wenger's side were denied a victory at Liverpool on Sunday as Martin Skrtel's 97th-minute header rescued a 2-2 draw for the hosts.
Flamini believes that Arsenal's form will improve soon due to key players, such as Olivier Giroud, Mathieu Debuchy, Alex Oxlade-Chamberlain and Theo Walcott, returning from injury.
"It would be crazy to think the opposite because we lost so many key players and having them back is very important for the team," he told the London Evening Standard.
"We definitely need them because in the championship and the last stages of the Champions League, you cannot do it with 11 players. You need 25 so it is important for us to have them back.
"The season is going to be long. We are only arriving at Christmas now. There are still a lot of games to go so we take one game after another and focus on the next matches. I am very confident in the team, very confident in the quality we have because we have a few top players."
Arsenal are currently sixth in the Premier League table.