Northampton Town goalkeeper Chris Dunn has been sidelined for at least three weeks after undergoing knee surgery.
Billy Lumley will deputise in goal, having made his debut for the Cobblers in the 3-2 defeat to Crewe Alexandra.
Manager Ian Sampson told BBC Radio Northampton: "He had an operation [on Saturday] on cartilage in his knee.
"We're going to lose him, hopefully for just three weeks. Billy is a confident boy, he's our number two goalkeeper so he deserves a chance."
Former Wolves keeper Lumley, 20, signed for Northampton from the Glenn Hoddle Academy in December. 2009.
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