Don't wait 30 years - sign up for our daily football email newsletter today!Calum Chambers believes he can answer Arsenal's defensive problems as he continues his road to recovery from a long-term injury.Chambers has only recently returned after suffering a serious knee injury last December and made his first appearance of the season in last week's Europa League win over Rapid Vienna.It is a much-needed boost for the Gunners, whose poor form in the Premier League has led to doubts over the future of manager Arteta.Arsenal's north London derby defeat to Tottenham on Sunday saw them drop to 15th in the English top flight, their worst start to a campaign for 39 years.But it has been a different story in Europe for Arsenal, having won all five.
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