Midfielder could start at Donny.
U's boss Tony Humes might have to make changes against Doncaster Rovers on Saturday.Midfield is the area affected, with David Fox(hip/groin), Sammie Szmodics(foot), and Tom Lapslie(ankle), all doubtful.
It could see a return to the starting line-up for George Moncur, who has recovered from a bout of Tonsillitis.
He completed the full ninety minutes in the impressive 5-2 win for the U21s against Swansea City on Monday night to put himself back in the manager's thoughts.
Rhys Healey, Jack Marriott and Dion Sembie-Ferris all played and scored against the Swans, staking their claim for a starting spot at the Keepmoat Stadium.
New signing Karleigh Osborne will also be hoping for a place in the eleven, after joining on loan from Bristol City on Thursday.
U's: Walker, Lewington, Clohessy, Eastman, Osborne, Wynter, Briggs, Gordon, Gilbey, Lapslie, Fox, Lawrence, Szmodics, Moncur, Massey, McEvoy, Sembie-Ferris, Hewitt, Healey, Bonne, Marriott, Porter