Midfielder Antoni Sarcevic and striker Ryan Taylor have yet to take a full part in pre-season training with the rest of the Plymouth Argyle squad.
The pair have still not been able to overcome injuries which kept them out of action towards the end of last term.
However, manager Derek Adams still expects both players to be fit for the start of the League One campaign on Saturday, August 4.
The duo signed new two-year contracts earlier this summer to extend their stays with the Pilgrims.
Sarcevic and Taylor attended Argyle’s opening pre-season game, the 4-2 win away to Plymouth Parkway on Saturday, but were not involved in it.
Adams told Plymouth Live: “They haven’t recovered from their injuries so we are just waiting for them to come back.”
Sarcevic had a groin operation in February and although he returned to action near the end of the season he was not clearly fully match fit.
Taylor, meanwhile, damaged his right ankle in training at the start of April.
That led to him having surgery to remove some floating bone from his left ankle, which he had broken in the 2017/18season-opener at Peterborough United.
Adams said: “We don’t know as yet when they will be available. They are still with the physio team.
Ryan Taylor has got a problem with the ankle which he damaged before he went in for the operation on the left one.
“Antoni Sarcevic did have surgery and that worked on what he had to get done but he has still got a problem with his groin.”
Sarcevic played four times after returning from his operation as the Pilgrims were hit hard by injuries during the pursuit of a League One play-off place.
However, the midfielder struggled to be effective and sat out the season-ending 5-2 defeat at Gillingham.
Adams said: “He was fully fit from a clinical point of view but he obviously wasn’t fully fit from a physical point of view.”
Adams was asked whether he thought Sarcevic and Taylor would be fit for the start of the 2018/19 campaign.
He replied: “I would have thought so, yes. We are only a week into pre-season training and they will be ready to play games.”
Argyle will begin their League One season against Walsall at the Banks’s Stadium on August 4.
Sarcevic has been able to do some fitness work away from the training ground but that has not been the case for Taylor.
Adams added: “The two of them have been out since a period of last season and it has dragged on.”