Magilton has missed both of Town's opening games against Gillingham at Portman Road and Nottingham Forest at the City Ground with a thigh injury, and it's likely that the former Northern Ireland international will miss his third on Saturday.
Speaking of Jim's injury problem to ITFC.co.uk, Town boss Joe Royle said: "Jim is unlikely to play against Derby but we will see how he is on Friday. I have learned never to write off the old warhorse and he is running again but the tear is still there in his thigh
"He is working with Dave Williams, our physio, and we are taking it a day at a time at the moment but we do need him out on the park because he is a big influence on the side."