Team GB coach Stuart Pearce has hopes Chelsea striker Danny Sturridge will still make the Olympics.
The 22-year-old Chelsea forward fell ill last weekend with viral meningitis - what is typically considered a mild strain of the disease.
"Doctors had a look at him last week, visited him and basically he will stay here," said Pearce.
"He won't come to Spain when we do our prep there and all being well we'll pick him up when we fly back into the Olympic Village Monday week. We will assess him at that time.
"The good thing is we probably have a couple of weeks to make a decision on his fitness.
"If he is fully fit, he will stay with us. If we think there are any doubts in any shape or form, we'll call someone else to replace him. July 25 is that latest we can make that decision.
"We still have a few weeks in respect to that, but the important thing is probably once we get him on the training pitch to look at him and see how he is and how much this illness has affected him."