Team news for Saturday's League Two clash between Oxford United and Chesterfield at the Kassam Stadium.
The Us will be without key duo James Constable and Jake Wright for their top-of-the-table clash this weekend.
The second-placed U's welcome the League Two leaders without striker Constable, who has chipped a bone in his foot, and Wright who has undergone an operation on a groin problem.
Both players are set to be sidelined for at least a month and they join Jon Meades in the treatment room.
Wright's absence means Johnny Mullins will be partnered by Michael Raynes while Deane Smalley is pushing for a start. There is positive news about Sean Rigg who hopes to return to training in the build-up to the clash.
Chesterfield have no new problems ahead of their top-of-the-table clash with Oxford.
Blues boss Paul Cook, who will still be without defenders Nathan Smith (ankle) and Matty Brown (hamstring), must decide whether to make changes to a winning team after seeing the Spireites stretch their advantage at the summit of League Two to four points with a 2-0 home success against AFC Wimbledon last weekend.
Gary McSheffrey made his debut from the bench and will be pushing for a start along with fit-again club captain Ian Evatt and in-form striker, in the reserves at least, Eoin Doyle.
The likes of Sam Togwell, Armand Gnanduillet and Ryan Edwards are also options for Cook.