Armstrong is currentley recieving treatment for the injury and has underwent a scan that he should know the results of early next week which will determine if his loan is cut short or not.
Speaking of the chance of Town's number 10 returning to Portman Road, Loan Club manager, Bryan Robson of Bradford said: "We will know a lot more on Monday. Then we will have to work out if he stays at Ipswich or if he is ever going to be fit enough to come back with us."