Arran Lee-Barrett has held the number one shirt for the past six games since Richard Wright suffered a knee injury and Keane has seen his improving side lose just once in that time.
However, Lee-Barrett's current short-term deal runs out at the end of January and Keane has new signing Brian Murphy available for the first time after arriving from Irish side Bohemians. Wright will be out for several months so Keane must choose between the two.
Elsewhere, striker Jon Stead will serve the second of his four-match ban after his sending off at Crystal Palace on Boxing Day so Stern John will continue after extending his loan from Palace.
Defender Tommy Smith has joined Brentford on a one-month loan deal while midfielder Liam Trotter has completed his one-month loan deal to Millwall.
David Norris made his first start since picking up a knee injury in August at Blackpool last weekend and is in contention, while Argentinian winger Luciano Civelli is close to a return from his own serious knee problem.