Even with the striking talents at their disposal,losing Sergio Aguero to injury last night will give City’s Mancini some headache.
The £38m striker limped off soon after scoring from the penalty spot in City’s 3-0 win over Stoke on New Year’s Day .
The Argentine will miss Saturday’s FA Cup third-round tie against Watford.
“It’s difficult to assess an injury like that but my experience says he is doubtful for Arsenal,” said assistant manager David Platt.
“There will be a lot of swelling in there and a bit of bleeding and we will not know for 48 hours how long he will be out for.”
The game with the Gunners is City’s next in the Premier League and comes on the same day leaders Manchester United – who hold a seven-point lead over them at the top – face Liverpool in another crunch match at Old Trafford.
City boss Roberto Mancini tried to play down the injury, adding: “I don’t think it is serious. His hamstring is sore, maybe in 10 days he can recover.”
Aguero is City’s joint-top scorer this season with 10 goals, along with Edin Dzeko who also found the net against the Potters.