Midfielder Carlos Edwards and striker David Healy have joined defender Damian Delaney in being ruled out of Saturday's game against Doncaster due to injury. Centre back Delaney was ruled out of the clash at Portman Road earlier this morning after sustaining ankle ligament damage in last weekend's Championship clash against Nottingham Forest whilst Carlos Edwards misses out with Chickenpox and David Healy sidelined by a knee injury picked up in training.Town also have a concern over first choice goalkeeper Brian Murphy, who was trapped in Ireland due to the current volcanic ash causing havoc in the country's airspace, meaning the former Bohemians stopper has been forced to take the ferry to the United Kingdom."We've also have a concern over Murph. He was in Ireland on Wednesday over a family matter and couldn't fly back yesterday because of the flight problems." Town boss Keane confirmed to the Official Club Website."He got a ferry across in the end and was driving down from Stranraer overnight I think it was. He will have a light session today but he should be okay for the weekend."