Jon-Paul Pittman is set for a spell on the sidelines after damaging the medial ligament in his right knee.
Meanwhile, Gareth Ainsworth has confirmed that Charles Dunne will be out for a minimum of three months after fracturing his left tibia.
The extent of Pittman’s injury will be announced after further assessment.
The striker picked up the problem in training earlier this week, just as he had returned to full training after rolling his ankle.