The striker, a big money January signing who made just one start for the club last season, could be set for a return to the Greek club
Fulham want a £2.5 million loan fee for Olympiakos target Kostas Mitroglou, Goal understands.
The misfiring striker is on the radar of the Greek club, who have contacted the Londoners about re-signing him on loan.
Fulham would prefer to sell Mitroglu but accept they will not recoup the fee they paid Olympiakos for him in January, which was an initial £8m rising to a potential £12m.
A season-long loan, coupled with a substantial fee, is likely to prove the Londoners' best means of recovering some of their losses on a player who is surplus to requirements under Felix Magath.
Mitroglou has started only one match for Fulham in an injury-ridden spell at Craven Cottage and was not in the squad for their opening day Championship defeat to Ipswich Town last weekend.
Fulham are expected to move for another striker if they offload the 26-year-old Greece international, who played in all four of his country's games at this summer's World Cup.