Mark Robinson is likely to be without Paul Kalambayi for the next month after the centre-back suffered a quad injury.
Paul scored in the 5-3 Papa John's Trophy match versus Portsmouth, but he suffered the injury in that game and it has turned out to be worse than initially thought.
Robbo said: "Paul felt something in the Portsmouth game, and we thought it was innocuous, but it’s turned out to be a little bit more than that. He could be out for four or five weeks, which is a blow for him because he looked great in that game, but we will keep his spirits high.
"We’ve got Dan, and Darius, if we need him. Henry can also drop in there at centre-back and even if we went to three at the back Nesta would be more than capable of doing it. We have got cover, but Paul is important for us, so we hope he gets back as soon as possible.”