Four clubs have approached Fulham to sign the forward on loan, but Sunderland and QPR are pushing the hardest to sign him
And it has been claimed that Fulham have made a decision to loan him out again this summer.
There was League One interest in him last month but the Cottagers have been insistent that he needs to play at a higher level.
Stansfield is set to be loaned out to a Championship club as Fulham look to decide on the right club.
It remains to be seen whether Sunderland or QPR manage to secure a deal to sign the forward on loan this summer.
Siopis had a year left to run on his deal in Trabzonspor, and was even offered a new three-year deal to boot, however Siopis opted to turn down the extension and instead engineered a way out of his contract. Cardiff could then pounce and sign him on a three-year deal themselves, which was announced earlier today.
The terms of that exit settlement have been reported by outlets and journalists in Turkey. Newspaper Haberturk state that Siopis had to pay €242,500 (£207,000) to exit his contract and his agent had to waive €257,500 (£220,000) he was due from the club