Last week Maresca suggested that this Sunday’s game, which kicks off at 16:30 GMT might come too soon for Palmer.
His absence would have been a major blow for the Blues who are second behind the Gunners and will close the gap at the top to three points with a win.
Palmer last featured in a 2-1 defeat at Manchester United on 20 September, with Chelsea playing 13 games since across all competitions since then, winning 10, losing two and drawing the other.
He joined from Manchester City for an initial £40m in September 2023 and has topped Chelsea’s scoring charts in each of the past two Premier League campaigns – scoring 22 goals in his debut season and adding a further 15 last term.
Summer signing Estevao Willian has shone in Palmer’s absence – with five goals across all competitions – and Maresca suggested the pair could play together.
“[It] depends on the game plan,” Maresca said.
“For sure they are exciting. Fans excited. We also are excited. We need always balance between two.”
