Middlesbrough skipper Gary O'Neil is a doubt for the Coca-Cola Championship clash with Peterborough as he battles a groin injury.
Striker Chris Killen, who like O'Neil, scored in Tuesday night's 2-1 home win over Barnsley, is also struggling after picking up a hamstring strain.
However, Emanuel Pogatetz and Scott McDonald, who both played the full 90 minutes in midweek despite not being fully match fit, suffered no ill-effects and should be available again.
Julio Arca, who has missed the last two games with a toe problem, is unlikely to return, while Chris Riggott (hamstring), Rhys Williams (pelvic injury) and Jeremie Aliadiere (ankle surgery) are back in light training.
Seb Hines (ankle and knee ligament) and Matthew Bates (cruciate ligament) remain on the sidelines.
Peterborough manager Jim Gannon is debating a tactical change.
Gannon has favoured a 3-4-1-2 formation in his two games in charge so far but reverted to 4-4-2 for the second half of the 2-0 defeat at Cardiff in midweek and may start with the more orthodox shape for Posh's first trip to the Riverside.
Centre-half Gabriel Zakuani remains sidelined with a groin injury but Gannon has no other problems as he looks for a first away win of the season.
Midfielder Charlie Lee picked up a dead leg in the win over QPR last Saturday but was fit enough to be on the bench at Cardiff and comes back into the reckoning to face Gordon Strachan's men.
A goal from Dominic Iorfa gave Peterborough a draw on their last visit to face Boro at their old Ayresome Park home in October 1993.
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