Tamas Priskin's loan spell also ended after Saturday's game and it is thought that Watford may want to recall him for their all important run in for promotion. If that is the case then that leaves only Brown and out of favour Hawley as regular strikers.
Irvine is going to look at how serious the injury to Mellor is first before seeing if he can recall Brett Ormerod who is out on loan at Nottingham Forest.