PALACE assistant boss Keith Millen says club captain Paddy McCarthy, Jonathan Parr and Kagisho Dikgacoi might play a part in Saturday's pre-season friendly at Waterford United.
McCarthy has not kicked a competitive ball for more than a year but has been in full training this summer, while Parr looks set to return after rupturing ankle ligaments at Ipswich Town in April.
Dikgacoi also suffered ankle damage sustained in the Championship play-off final in May.
"Jonny and Paddy are back training every day," Millen said.
"They're looking good and we might look to give them some time in the midweek game, but then build their fitness up for this weekend.
"KG is getting his fitness up and is improving. He's joined in with training but he's working hard and we'd like to think he'll be up to full speed by Saturday."
Meanwhile, Millen believes trialist Jake Nicholson, released by Tottenham Hotspur last month, will only be part of the U21 development side and not in the first-team picture next season.
The 20-year-old has been training with the club and has featured in pre-season games against East Grinstead Town and Gillingham so far.
"He's really under Gary Issott's group so he'll make a decision on him based on the U21 group, whether he feels he'll improve them," said the assistant. "He's not someone who would be involved in the first-team squad, he's under Gary's wing."