Manager Pat Fenlon has confirmed midfielder Lewis Stevenson is expected to be ruled out through injury for a few weeks.
Stevenson - last season's Player of the Year - damaged his foot during Sunday's Edinburgh Derby, but played through the pain barrier for almost half an hour before being substituted.
A subsequent scan has shown that he has fractured a prominent bone in his foot and boss Fenlon admits he expects to be without the services of Stevenson for a consierable period of time.
Fenlon said: "We're not totally sure just how long exactly Lewie is going to be out for, but it will definitely be for a few weeks.
"Unfortunately there is a small fracture on his big toe and we will carefully manage him and monitor his progress."
On the subject of concluding transfer deals, Fenlon stresses that he is far from finished and will continue pursuing players until the closure of the transfer window.
He added: "We're working hard towards adding further strength and quality to our squad and hopefully all that hard work will come to fruition sooner rather than later."
An in depth and exclusive interview with boss Pat Fenlon will be aired on Hibernian TV tomorrow ahead of Saturday's match at St Mirren.