Arsenal manager Arsene Wenger says midfielder Mathieu Flamini and defender Hector Bellerin will be assessed on Saturday morning ahead of the game against Crystal Palace.
After last week's convincing win in the FA Cup, the Gunners continue their quest for a top four finish when they face Alan Pardew's side.
And with Monaco coming up in the Champions League, the Frenchman reveals there are a number of injury concerns in his squad.
"[Aaron] Ramsey is still out, he is nine days into his three-week rehab," Wenger said.
"The two other injuries are [Mikel] Arteta and [Mathieu] Debuchy. Apart from that we have some uncertainties about [Mathieu] Flamini and [Hector] Bellerin - they are doubtful for Saturday.
"Bellerin is his ankle and Flamini has a tight hamstring. We'll see. We'll have tests tomorrow [today].
"Everybody else is OK. Jack [Wilshere] is a bit ahead of schedule and has worked hard with no big problems, so it's good to have him back.
"[Alex Oxlade-Chamberlain] is close, he will join in normal training today."
