Simon Cox is a concern for Nottingham Forest ahead of Sheffield Wednesday's visit to the City Ground.
Manager Sean O'Driscoll is awaiting news on the striker after he suffered a foot injury while on international duty in midweek.
Cox limped out of the Republic of Ireland's 1-0 friendly defeat to Greece in Dublin after an hour on Wednesday night and he will continue to be assessed by the club's medical staff.
However, midfielder Adlene Guedioura, who has been away on international duty with Algeria, is expected to be available against the Owls.
Daniel Ayala could come back into O'Driscoll's plans after a four-match lay-off with a hamstring injury but fellow defender Dan Harding remains a doubt with a similar problem.
Forest are without a win in three games since beating Barnsley 4-1 at Oakwell on October 27.
Sheffield Wednesday will be without striker Chris O'Grady.
The Owls' five-goal leading scorer is struggling with an ongoing foot problem and will be sidelined for a fortnight, so Gary Madine will continue to lead the line, with Jay Bothroyd and Michail Antonio supporting in wider roles.
Manager Dave Jones has no new injury or suspension problems and is unlikely to make too many, if any, changes.
Paul Corry shook off an ankle injury in time to play the full 90 minutes in last week's defeat at Middlesbrough and is expected to resume in midfield alongside teenager Ross Barkley, on loan from Everton, and Jose Semedo.
Jones could be tempted to recall Martin Taylor to the centre of his defence as the Owls chase their second away win in the league this season.