The former Ireland international went under the knife on Tuesday to alleviate a problem with a disc in his lower back and he will miss out along with banned trio Matthew McClure, Matthew Spring and Joel Grant.
Meanwhile Dave Winfield and Dean Morgan are both doubts with hamstring complaints meaning they are touch and go for the clash with the Capital One Cup semi-finalists.
Morgan's possible absence, along with McClure and Grant means player/manager Gareth Ainsworth could be short of attacking options for this weekend's match.
There is some good news for the 39-year-old though with Anthony Stewart having returned to full training following a thigh injury.
- Sports & Recreation
- Dean Morgan
- Matthew Spring
- Dave Winfield
- Joel Grant