DANNY Shittu, Carlos Edwards and David Forde will sit out Millwall's pre-season training camp in Portugal next week.
But up to seven Lions youngsters could be on the plane to the Algarve as manager Ian Holloway prepares to inject some fresh energy into his squad.
Millwall's players reported for duty at the training ground this morning for two days of fitness assessments before their flight to Lagos.
"Space is limited and I will only be taking players who can train three times a day," Holloway said.
"That's pretty gruelling in the heat we're going to be experiencing over there so those who go need to be ready for that.
"The young ones will all go because they will be ready but I might leave some senior ones behind and see them the following week.
"Some of them don't need to do all of that work right now.
"Edwards has got problems with his work permit and coming in and out of the country, but that doesn't matter because he's a fit lad and he'll be back the week after.
"I don't expect Shittu to come either – there's no point dragging him into that scenario. I've already made that decision.
"Danny was injured at the end of last season but he wouldn't train three times a day anyway because of his knee, so he'll understand that.
"Forde is having a longer break so I'm not going to take him – I'll take two other 'keepers.
"He needs an extra week with his family because he's only just finished playing. He needs to come back refreshed."
Asked which rising stars will join the first team in Portugal, Holloway revealed: "Jack Powell, Fred Onyedinma, Jake Goodman, Aiden O'Brien and John Marquis will definitely come.
"Possibly Josh Siafa and Alfie Pavey too, I'm not quite sure yet. If they do well, I'll keep them in the squad – if they aren't quite there yet, I'll loan them out."