Arsenal star Alexis Sanchez heading back to Chile for recuperation ahead of Manchester City clash

Every injured Arsenal player

• 1/10 Danny Welbeck

  Injury: Knee
  Out since: April 2015
  Due to return: January 2016
  Welbeck was expected to miss the end of last season after picking up an injury in the FA Cup semi-final. It was subsequently announced just days after the transfer window closed that he had undergone surgery. With Theo Walcott also out Wenger has only Olivier Giroud in his strikeline.

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• 2/10 Tomas Rosicky

  Injury: Knee
  Out since: August 2015
  Due to return: January 2016
  After nearly 10 years at Arsenal Rosicky has become a fixture on the treatment table. The 35-year-old is yet to play any part this season but has previously come to the fore in the final months of the campaign as team-mates tire.

• 3/10 Jack Wilshere

  Injury: Calf/Shin
  Out since: April 2015
  Due to return: January 2016
  Another Arsenal player more likely to be found on the sidelines than on the pitch the latest setback may be among the most frustrating for Wilshere. After a bright preseason he picked up a knock just days before the Community Shield and is yet to return.

• 4/10 Theo Walcott

  Injury: Muscular
  Out since: October 2015
  Due to return: Early December
  Just as things seemed to be coming together for the Arsenal forward another injury disrupts his progress. Walcott had established himself as the first-choice striker and was building a formidable understanding with Alexis Sanchez and Mesut Ozil. Now Olivier Giroud is Arsene Wenger's only option.

• 5/10 Francis Coquelin

  Injury: Knee Ligament
  Out since: November 2015
  Due to return: TBC
  Among the most crucial players in the Arsenal side, Coquelin's absence is expected to be a lengthy one after the anchorman appeared to damage his knee ligaments in a loss to West Brom. The 24-year-old had enjoyed a fine run of form in recent months and his absence will be particularly frustrating for Wenger.

• 6/10 Mikel Arteta

  Injury: Calf
  Out since: November 2015
  Due to return: TBC
  A replacement for Francis Coquelin the club captain lasted just 35 minutes of the 2-1 defeat to West Brom before coming off with a calf problem. It came just a few weeks after Arteta had returned from another injury - the 33-year-old has now been ruled out for the seventh time this season.

• 7/10 Laurent Koscielny

  Injury: Hip/Thigh
  Out since: November 2015
  Due to return: TBC
  Another injury-prone Gunners star, Koscielny picked up his third injury of the season early on in the 1-1 draw against Norwich. The centre-back has been one of Arsenal's most crucial players in recent years and his side conceded eight in two games without him in October.

• 8/10 Santi Cazorla

  Injury: Knee
  Out since: November 2015
  Due to return: TBC
  Though he soldiered through the Norwich match Arsene Wenger said afterwards that his deep-lying creator had "finished on one leg". With Francis Coquelin also absent the Gunners could be without the entirety of their first-choice midfield pair.

• 9/10 Alexis Sanchez

  Injury: Hamstring
  Out since: November 2015
  Due to return: TBC
  After playing 90 minutes of the comfortable 3-0 win Wenger confirmed Sanchez had a "hamstring alert". But he played him anyway against Norwich and after 60 minutes of bright play his star forward was forced off with an injury that could keep the striker out for at least three weeks.

• 10/10 Kieran Gibbs

  Injury: Calf
  Out since: November 2015
  Due to return: TBC
  The England international missed the 1-1 draw with Norwich and it later emerged he had suffered a problem after the midweek win over Dinamo Zagreb, taking Arsene Wenger's casualty list to 10.