Centre-half Kay has missed the last three matches through suspension following his third red card of the season against Crewe last month.
Captain Dean Lewington and striker Izale McLeod have resumed training after respective knee and hamstring injuries, although Dons boss Karl Robinson has yet to make a decision on whether their comebacks will be from the start or from the bench.
Winger Daniel Powell will be monitored after coming off against Crawley on Saturday, while goalkeeper David Martin is still struggling with the back injury that has kept him out for the past six weeks.
Luke Chadwick, Chris Lines, George Baldock and Alan Smith, all substitutes at the weekend, will all be eager to step in to replace Powell if required.
The goalless stalemate against Crawley left the Dons seven points adrift of the play-off places, prompting Robinson to say that his side must win all their remaining matches if they are to have any chance of sneaking into a top-six spot.
- Sports & Recreation
- Karl Robinson