The Town number 14 has so far not took part in any training this week, and his hamstring injury may not clear up in time to face Dario Gradi's side on Saturday.
Speaking to the Official Club Website, Town boss Joe Royle confirmed: "Matt has not trained this week and at the moment, he has to be rated a doubt for the Crewe game."
However there is better news on Jim Magilton and Martijn Reuser, who both appear to be over their problems: "Jim Magilton and Martijn Reuser both trained okay on the Tuesday though after missing the session on Monday with back problems." Royle confirmed.