The Blues record signing was forced to sit-out the 1-0 Premiership defeat at Everton last sunday with the groin injury that saw him substituted 25 minutes from the end of the 2-1 win over Man City on Boxing Day.
However, reports today suggest that Dunny has now recovered from the injury and is set to return to Steve Bruce's side to face his former club in the FA Cup 3rd round tie at St. Andrews.
Defender Jamie Clapham looks like missing his third game in a row with a hamstring injury so Bruce is likely to play Australian Stan Lazaridis in the left back position again.