The Blues take on the league leaders on Sunday in the biggest match of gameweek 13 in the [Premier League](/topic/premier-league).
Talismanic attacking midfielder Palmer has been out of action for the west Londoners since Septenber with a niggling groin injury that flared up in the warm-up of Chelsea’s win at West Ham at the start of the campaign.
He was set to return ahead of their Champions League win over Barcelona earlier this week, but his comeback was pushed back after he innocuously broke his toe.
"He is available for both,” Maresca replied when asked if Palmer was available to face and start against Arsenal.