Pep Guardiola insists Arsenal's recent problems will not prevent them providing Manchester City with a big test this weekend.
The Premier League champions travel to the Emirates Stadium on Sunday expected to get back to winning ways after last weekend's damaging loss to Manchester United.
Arsenal have endured a difficult campaign to date, with manager Unai Emery sacked last month and last Monday's victory over West Ham being their only success in 11 matches in all competitions.
"You can be 45 years old and believe you are not be ready, or be 35 years old and believe you are ready," Guardiola said. "Only he knows."
City's record goalscorer Sergio Aguero and defender John Stones are still sidelined with thigh and hamstring injuries respectively.
Veteran playmaker David Silva is also a doubt after a blow to the leg in the derby last Saturday.