Arsene Wenger is convinced his squad has enough depth to cope with a number of short-term injury problems, but accepts there is "not a lot of margin for error" if their Barclays Premier League title challenge is to last the distance.
The Gunners head into Saturday's clash against Everton at the Emirates Stadium without captain and centre-half William Gallas as well as full-back Bacary Sagna, who both picked up knocks while away with France. Injuries to defender Johan Djourou and striker Nicklas Bendtner as well leave Wenger short on options.
But Wenger said: "I still think it is manageable to get back to the top and I want to lead this team knowing that there is not a lot of margin of error left - but I still think we can do that."
He added: "If you ask me how many games you think we can lose, I would say zero because I always start a season thinking you cannot lose a game, but we have lost two already and we are in a position where we have given ourselves a handicap," he said.
Wenger hopes all of his latest injury woes will be short-term, with winger Tomas Rosicky and striker Eduardo both continuing their long roads back to full match fitness.
Forward Robin van Persie has recovered from a muscular problem picked up while away with Holland, but Walcott could be given a breather on Saturday.
"Theo has come back available, but I might rest him because he played on Wednesday night in Minsk. We have that option," said Wenger.
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