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He said: "We've got Darryl Powell at the moment for a week. He didn't get fixed up in the summer and he's got a great deal of experience.
"He is training with us and we will see what happens and how he looks but he has come with us with a view to trying to earn a contract before the transfer window shuts.
"We have spent a lot of money this summer, not only in transfer fees but also in wages to bring in players we feel can help us in the Premiership.
"But this week we've got two suspended and two injured and if you added in another couple of absentees it would become difficult for us in terms of numbers."