Arsene Wenger now has a massive nine first-team players carrying injuries after Mathieu Debuchy dislocated his shoulder in the win against Stoke City.
With a trip to the Etihad looming on Sunday, the Arsenal manager will be hopeful a couple of those will be fit enough to play.
The French right-back lasted just 13 minutes before he crashed into the advertising hoardings and had to be replaced by youngster Hector Bellerin and has now played just 10 of Arsenal's 21 Premier League matches since his £10million move from Newcastle in the summer.
Arsenal's injury list
Arsenal's injury list
1/5 Mikel Arteta (midfield)
Like Diaby, the Spaniard is closing in on a return but the Swansea match will come to soon. The club captain last played in November.
2/5 Mathieu Debuchy (defender)
Returned in the FA Cup semi-final win over Reading but has since been ruled out with injury and Wenger confirmed he remains 'unavailable'.
3/5 Alex Oxlade-Chamberlain (midfield)
Suffered a hamstring injury against Manchester United in the FA Cup and hasn't played since as it has exacerbated a groin problem. Out at least until May and facing surgery in the summer.
4/5 Aaron Ramsey (midfield)
Aaron Ramsey caught a kick on his calf during the win over Hull and was later substituted. The Welshman was rated 50/50 for the Swansea match by Wenger, but it now appears that he is a major doubt for the clash at the Emirates.
5/5 Danny Welbeck (forward)
Danny Welbeck has not played since the goalless draw with Chelsea towards the end of April after suffering a knee injury. Wenger has confirmed that the injury is 'nothing major', and that he should return to full fitness before the end of the season.
With Arsene Wenger conceding ahead of the game that he needed defensive reinforcements, the French manager is expected to make a move in this transfer window with Debuchy out for an unknown amount of time.
After the match, Wenger said: "He has a dislocated shoulder. It is difficult (to say how long he will be out) - you need a diagnosis from a specialist.
"We don't know yet, but he will certainly not play next week. Kieran Gibbs still has an inflamed ankle.
"Monreal and Debuchy can play centre-back, but if Gibbs is not here Monreal cannot play centre-back and if Debuchy is not here he cannot play centre-back. This is a position where we are short."
Danny Welbeck, Mathieu FLamini and Mikel Arteta could return for the game against City, but Yaya Sanogo, Abou Diaby and Jack Wilshere remain long-term concerns.
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