Hearts' Ryan McGowan will miss the Edinburgh derby with Hibernian after the club accepted an offer for the right-back from a Chinese side.
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Manager John McGlynn declined to disclose the identity of a player who is struggling to be fit for the Clydesdale Bank Premier League match, but defender Andy Webster was doubtful with a knock for the encounter at Ross County, which was postponed.
Long-term injury victims Danny Grainger and Jamie Hamill (both knee) are out.
Hibernian defender Ryan McGivern is expected to be fit after training on Wednesday.
The on-loan Manchester City defender missed last Saturday's 1-0 win over Clydesdale Bank Premier League leaders Celtic due to a hamstring problem.
McGivern could replace Lewis Stevenson at left-back for the trip across the capital to Tynecastle.
Hearts (from): MacDonald, Webster, Zaliukas, McHattie, Paterson, D McGowan, Barr, Holt, Taouil, Novikovas, Sutton, Driver, Walker, Enckelman, Stevenson, King, Ridgers, Smith, Carrick, Robinson.
Hibernian (from): Williams, Hanlon, Maybury, Claros, Cairney, Clancy, Deegan, Wotherspoon, Stevenson, Griffiths, Doyle, Caldwell, Stanton, Handling, Kuqi, Sproule, McGivern, Taiwo, Antell, Murdoch.