Skipper fit after hamstring problem.
Fellow centre half Frankie Kent isn't so lucky though, he continues to miss out with a knee injury picked up in training ahead of the Barnsley game last weekend.
U's boss Tony Humes has moved to fill the defensive void though, bringing in QPR teenager, Cole Kpekawa on loan.
Macauley Bonne was another player to have missed the clash at Oakwell but he returns to the U's squad after starring on international duty.
He scored on his debut for Zimbabwe, opening the scoring in a 2-1 defeat to Morocco in front of over forty-five thousand fans last Sunday.
U's: Walker, Lewington, Clohessy, Kpekawa, O'Donoghue, Hewitt, Okuonghae, Eastman, Gilbey, Szmodics, Fox, Eastmond, Moncur, Sembie-Ferris, Massey, Roofe, Watt, Healey, Bonne, Sears