Dundee United boss Craig Levein is in talks with Leicester City striker Mark de Vries.
But a troublesome foot injury has limited his first-team appearances at Elland Road.
The Surinam-born striker, who left Hearts in 2004, has also enjoyed spells at Dutch clubs Den Haag and Heerenveen.
De Vries joined Hearts in May 2002 after signing a pre-contract agreement from Dutch Second Division side Dordrecht '90.